diff --git a/lib/functions.zsh b/lib/functions.zsh
index aaf8a03e3..fda84a953 100644
--- a/lib/functions.zsh
+++ b/lib/functions.zsh
@@ -1,5 +1,5 @@
 function zsh_stats() {
-  history | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl |  head -n20
+  fc -l 1 | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl |  head -n20
 }
 
 function uninstall_oh_my_zsh() {
diff --git a/lib/grep.zsh b/lib/grep.zsh
index 977435ee4..276fec382 100644
--- a/lib/grep.zsh
+++ b/lib/grep.zsh
@@ -3,11 +3,22 @@
 # Examples: http://rubyurl.com/ZXv
 #
 
-# avoid VCS folders
-GREP_OPTIONS=
-for PATTERN in .cvs .git .hg .svn; do
-    GREP_OPTIONS+="--exclude-dir=$PATTERN "
-done
-GREP_OPTIONS+="--color=auto"
+GREP_OPTIONS="--color=auto"
+
+# avoid VCS folders (if the necessary grep flags are available)
+grep-flag-available() {
+    echo | grep $1 "" >/dev/null 2>&1
+}
+if grep-flag-available --exclude-dir=.cvs; then
+    for PATTERN in .cvs .git .hg .svn; do
+        GREP_OPTIONS+=" --exclude-dir=$PATTERN"
+    done
+elif grep-flag-available --exclude=.cvs; then
+    for PATTERN in .cvs .git .hg .svn; do
+        GREP_OPTIONS+=" --exclude=$PATTERN"
+    done
+fi
+unfunction grep-flag-available
+
 export GREP_OPTIONS="$GREP_OPTIONS"
 export GREP_COLOR='1;32'
diff --git a/plugins/docker/_docker b/plugins/docker/_docker
index 5acd19edf..c291037a3 100644
--- a/plugins/docker/_docker
+++ b/plugins/docker/_docker
@@ -166,7 +166,7 @@ __rm() {
 
 __rmi() {
     _arguments \
-        '(-f,--force=)'{-f,--force=}'[Force]' \
+        '(-f,--force=)'{-f,--force=}'[Force]'
     __docker_images
 }
 
diff --git a/plugins/git-prompt/gitstatus.py b/plugins/git-prompt/gitstatus.py
index ef894bff2..256841432 100644
--- a/plugins/git-prompt/gitstatus.py
+++ b/plugins/git-prompt/gitstatus.py
@@ -16,7 +16,7 @@ symbols = {
 }
 
 output, error = Popen(
-    ['git', 'status'], stdout=PIPE, stderr=PIPE).communicate()
+    ['git', 'status'], stdout=PIPE, stderr=PIPE, universal_newlines=True).communicate()
 
 if error:
     import sys
diff --git a/plugins/history-substring-search/history-substring-search.zsh b/plugins/history-substring-search/history-substring-search.zsh
index 53f707c79..22f03dd6d 100644
--- a/plugins/history-substring-search/history-substring-search.zsh
+++ b/plugins/history-substring-search/history-substring-search.zsh
@@ -163,8 +163,13 @@ function history-substring-search-down() {
 zle -N history-substring-search-up
 zle -N history-substring-search-down
 
-bindkey '\e[A' history-substring-search-up
-bindkey '\e[B' history-substring-search-down
+zmodload zsh/terminfo
+if [[ -n "$terminfo[kcuu1]" ]]; then
+  bindkey "$terminfo[kcuu1]" history-substring-search-up
+fi
+if [[ -n "$terminfo[kcud1]" ]]; then
+  bindkey "$terminfo[kcud1]" history-substring-search-down
+fi
 
 #-----------------------------------------------------------------------------
 # implementation details
diff --git a/plugins/osx/osx.plugin.zsh b/plugins/osx/osx.plugin.zsh
index 608ec3789..63760b5ff 100644
--- a/plugins/osx/osx.plugin.zsh
+++ b/plugins/osx/osx.plugin.zsh
@@ -184,7 +184,7 @@ function itunes() {
 			return 0
 			;;
 		*)
-			print "Unkonwn option: $opt"
+			print "Unknown option: $opt"
 			return 1
 			;;
 	esac
diff --git a/plugins/per-directory-history/README.md b/plugins/per-directory-history/README.md
new file mode 100644
index 000000000..d8ff93dc0
--- /dev/null
+++ b/plugins/per-directory-history/README.md
@@ -0,0 +1,56 @@
+[Per-Directory-History][6]
+=========================
+
+Per directory history for zsh, as well as global history, and the
+ability to toggle between them with ^G.
+
+This is a implementation of per directory history for zsh, some 
+implementations of which exist in bash[1][],[2][].  It also implements 
+a per-directory-history-toggle-history function to change from using the 
+directory history to using the global history.  In both cases the history is 
+always saved to both the global history and the directory history, so the 
+toggle state will not effect the saved histories.  Being able to switch 
+between global and directory histories on the fly is a novel feature as far 
+as I am aware.
+
+This is a standalone repository for the script, however it is also included in
+[oh-my-zsh][4] as a plugin.
+
+----------------------------------------------------------------------------
+Usage
+----------------------------------------------------------------------------
+
+1.  Load this script into your interactive ZSH session:
+
+        % source zsh-per-directory-history.zsh
+
+2.  The default mode if per directory history, interact with your history as normal.
+
+3.  Press ^G (the Control and G keys simultaneously) to toggle between local
+    and global histories. 
+
+
+
+-------------------------------------------------------------------------------
+Configuration
+-------------------------------------------------------------------------------
+
+* HISTORY_BASE a global variable that defines the base directory in which the 
+  directory histories are stored
+* per-directory-history-toggle-history is the function to toggle the history
+
+-------------------------------------------------------------------------------
+History
+-------------------------------------------------------------------------------
+
+The idea/inspiration for a per directory history is from [Stewart MacArthur][1] 
+and [Dieter][2], the implementation idea is from [Bart Schaefer][3].  The 
+implementation is by [Jim Hester][5] in September 2012.
+
+[1]: http://www.compbiome.com/2010/07/bash-per-directory-bash-history.html
+[2]: http://dieter.plaetinck.be/per_directory_bash
+[3]: http://www.zsh.org/mla/users/1997/msg00226.html
+[4]: https://github.com/robbyrussell/oh-my-zsh
+[5]: http://jimhester.com
+[6]: http://github.com/jimhester/per-directory-history
+
diff --git a/plugins/per-directory-history/per-directory-history.plugin.zsh b/plugins/per-directory-history/per-directory-history.plugin.zsh
deleted file mode 100644
index 61e8b5a62..000000000
--- a/plugins/per-directory-history/per-directory-history.plugin.zsh
+++ /dev/null
@@ -1,149 +0,0 @@
-#!/usr/bin/env zsh
-#
-# This is a implementation of per directory history for zsh, some 
-# implementations of which exist in bash[1,2].  It also implements 
-# a per-directory-history-toggle-history function to change from using the 
-# directory history to using the global history.  In both cases the history is 
-# always saved to both the global history and the directory history, so the 
-# toggle state will not effect the saved histories.  Being able to switch 
-# between global and directory histories on the fly is a novel feature as far 
-# as I am aware.
-#
-#-------------------------------------------------------------------------------
-# Configuration
-#-------------------------------------------------------------------------------
-#
-# HISTORY_BASE a global variable that defines the base directory in which the 
-# directory histories are stored
-#
-#-------------------------------------------------------------------------------
-# History
-#-------------------------------------------------------------------------------
-#
-# The idea/inspiration for a per directory history is from Stewart MacArthur[1] 
-# and Dieter[2], the implementation idea is from Bart Schaefer on the the zsh 
-# mailing list[3].  The implementation is by Jim Hester in September 2012.
-#
-# [1]: http://www.compbiome.com/2010/07/bash-per-directory-bash-history.html
-# [2]: http://dieter.plaetinck.be/per_directory_bash
-# [3]: http://www.zsh.org/mla/users/1997/msg00226.html
-#
-################################################################################
-#
-# Copyright (c) 2012 Jim Hester
-#
-# This software is provided 'as-is', without any express or implied warranty.  
-# In no event will the authors be held liable for any damages arising from the 
-# use of this software.
-#
-# Permission is granted to anyone to use this software for any purpose, 
-# including commercial applications, and to alter it and redistribute it 
-# freely, subject to the following restrictions:
-#
-# 1. The origin of this software must not be misrepresented; you must not claim 
-# that you wrote the original software. If you use this software in a product, 
-# an acknowledgment in the product documentation would be appreciated but is 
-# not required.
-#
-# 2. Altered source versions must be plainly marked as such, and must not be 
-# misrepresented as being the original software.
-#
-# 3. This notice may not be removed or altered from any source distribution..
-#
-################################################################################
-
-#-------------------------------------------------------------------------------
-# configuration, the base under which the directory histories are stored
-#-------------------------------------------------------------------------------
-
-[[ -z $HISTORY_BASE ]] && HISTORY_BASE="$HOME/.directory_history"
-
-#-------------------------------------------------------------------------------
-# toggle global/directory history used for searching - ctrl-G by default
-#-------------------------------------------------------------------------------
-
-function per-directory-history-toggle-history() {
-  if [[ $_per_directory_history_is_global == true ]]; then
-    _per-directory-history-set-directory-history
-    print "\nusing local history\n"
-  else
-    _per-directory-history-set-global-history
-    print "\nusing global history\n"
-  fi
-  zle .push-line
-  zle .accept-line
-}
-
-autoload per-directory-history-toggle-history
-zle -N per-directory-history-toggle-history
-bindkey '^G' per-directory-history-toggle-history
-
-#-------------------------------------------------------------------------------
-# implementation details
-#-------------------------------------------------------------------------------
-
-_per_directory_history_directory="$HISTORY_BASE${PWD:A}/history"
-
-function _per-directory-history-change-directory() {
-  _per_directory_history_directory="$HISTORY_BASE${PWD:A}/history"
-  mkdir -p ${_per_directory_history_directory:h}
-  if [[ $_per_directory_history_is_global == false ]]; then
-    #save to the global history
-    fc -AI $HISTFILE
-    #save history to previous file
-    local prev="$HISTORY_BASE${OLDPWD:A}/history"
-    mkdir -p ${prev:h}
-    fc -AI $prev
-
-    #discard previous directory's history
-    local original_histsize=$HISTSIZE
-    HISTSIZE=0
-    HISTSIZE=$original_histsize
-    
-    #read history in new file
-    if [[ -e $_per_directory_history_directory ]]; then
-      fc -R $_per_directory_history_directory
-    fi
-  fi
-}
-
-function _per-directory-history-addhistory() {
-  print -sr -- ${1%%$'\n'}
-  fc -p $_per_directory_history_directory
-}
-
-
-function _per-directory-history-set-directory-history() {
-  if [[ $_per_directory_history_is_global == true ]]; then
-    fc -AI $HISTFILE
-    local original_histsize=$HISTSIZE
-    HISTSIZE=0
-    HISTSIZE=$original_histsize
-    if [[ -e "$_per_directory_history_directory" ]]; then
-      fc -R "$_per_directory_history_directory"
-    fi
-  fi
-  _per_directory_history_is_global=false
-}
-function _per-directory-history-set-global-history() {
-  if [[ $_per_directory_history_is_global == false ]]; then
-    fc -AI $_per_directory_history_directory
-    local original_histsize=$HISTSIZE
-    HISTSIZE=0
-    HISTSIZE=$original_histsize
-    if [[ -e "$HISTFILE" ]]; then
-      fc -R "$HISTFILE"
-    fi
-  fi
-  _per_directory_history_is_global=true
-}
-
-
-#add functions to the exec list for chpwd and zshaddhistory
-chpwd_functions=(${chpwd_functions[@]} "_per-directory-history-change-directory")
-zshaddhistory_functions=(${zshaddhistory_functions[@]} "_per-directory-history-addhistory")
-
-#start in directory mode
-mkdir -p ${_per_directory_history_directory:h}
-_per_directory_history_is_global=true
-_per-directory-history-set-directory-history
diff --git a/plugins/per-directory-history/per-directory-history.plugin.zsh b/plugins/per-directory-history/per-directory-history.plugin.zsh
new file mode 120000
index 000000000..142d9541d
--- /dev/null
+++ b/plugins/per-directory-history/per-directory-history.plugin.zsh
@@ -0,0 +1 @@
+per-directory-history.zsh
\ No newline at end of file
diff --git a/plugins/per-directory-history/per-directory-history.zsh b/plugins/per-directory-history/per-directory-history.zsh
new file mode 100644
index 000000000..bdee341bd
--- /dev/null
+++ b/plugins/per-directory-history/per-directory-history.zsh
@@ -0,0 +1,149 @@
+#!/usr/bin/env zsh
+#
+# This is a implementation of per directory history for zsh, some
+# implementations of which exist in bash[1,2].  It also implements
+# a per-directory-history-toggle-history function to change from using the
+# directory history to using the global history.  In both cases the history is
+# always saved to both the global history and the directory history, so the
+# toggle state will not effect the saved histories.  Being able to switch
+# between global and directory histories on the fly is a novel feature as far
+# as I am aware.
+#
+#-------------------------------------------------------------------------------
+# Configuration
+#-------------------------------------------------------------------------------
+#
+# HISTORY_BASE a global variable that defines the base directory in which the
+# directory histories are stored
+#
+#-------------------------------------------------------------------------------
+# History
+#-------------------------------------------------------------------------------
+#
+# The idea/inspiration for a per directory history is from Stewart MacArthur[1]
+# and Dieter[2], the implementation idea is from Bart Schaefer on the the zsh
+# mailing list[3].  The implementation is by Jim Hester in September 2012.
+#
+# [1]: http://www.compbiome.com/2010/07/bash-per-directory-bash-history.html
+# [2]: http://dieter.plaetinck.be/per_directory_bash
+# [3]: http://www.zsh.org/mla/users/1997/msg00226.html
+#
+################################################################################
+#
+# Copyright (c) 2012 Jim Hester
+#
+# This software is provided 'as-is', without any express or implied warranty. 
+# In no event will the authors be held liable for any damages arising from the
+# use of this software.
+#
+# Permission is granted to anyone to use this software for any purpose,
+# including commercial applications, and to alter it and redistribute it
+# freely, subject to the following restrictions:
+#
+# 1. The origin of this software must not be misrepresented; you must not claim
+# that you wrote the original software. If you use this software in a product,
+# an acknowledgment in the product documentation would be appreciated but is
+# not required.
+#
+# 2. Altered source versions must be plainly marked as such, and must not be
+# misrepresented as being the original software.
+#
+# 3. This notice may not be removed or altered from any source distribution..
+#
+################################################################################
+
+#-------------------------------------------------------------------------------
+# configuration, the base under which the directory histories are stored
+#-------------------------------------------------------------------------------
+
+[[ -z $HISTORY_BASE ]] && HISTORY_BASE="$HOME/.directory_history"
+
+#-------------------------------------------------------------------------------
+# toggle global/directory history used for searching - ctrl-G by default
+#-------------------------------------------------------------------------------
+
+function per-directory-history-toggle-history() {
+  if [[ $_per_directory_history_is_global == true ]]; then
+    _per-directory-history-set-directory-history
+    print -n "\nusing local history"
+  else
+    _per-directory-history-set-global-history
+    print -n "\nusing global history"
+  fi
+  zle .push-line
+  zle .accept-line
+}
+
+autoload per-directory-history-toggle-history
+zle -N per-directory-history-toggle-history
+bindkey '^G' per-directory-history-toggle-history
+
+#-------------------------------------------------------------------------------
+# implementation details
+#-------------------------------------------------------------------------------
+
+_per_directory_history_directory="$HISTORY_BASE${PWD:A}/history"
+
+function _per-directory-history-change-directory() {
+  _per_directory_history_directory="$HISTORY_BASE${PWD:A}/history"
+  mkdir -p ${_per_directory_history_directory:h}
+  if [[ $_per_directory_history_is_global == false ]]; then
+    #save to the global history
+    fc -AI $HISTFILE
+    #save history to previous file
+    local prev="$HISTORY_BASE${OLDPWD:A}/history"
+    mkdir -p ${prev:h}
+    fc -AI $prev
+
+    #discard previous directory's history
+    local original_histsize=$HISTSIZE
+    HISTSIZE=0
+    HISTSIZE=$original_histsize
+
+    #read history in new file
+    if [[ -e $_per_directory_history_directory ]]; then
+      fc -R $_per_directory_history_directory
+    fi
+  fi
+}
+
+function _per-directory-history-addhistory() {
+  print -Sr -- ${1%%$'\n'}
+  fc -p $_per_directory_history_directory
+}
+
+
+function _per-directory-history-set-directory-history() {
+  if [[ $_per_directory_history_is_global == true ]]; then
+    fc -AI $HISTFILE
+    local original_histsize=$HISTSIZE
+    HISTSIZE=0
+    HISTSIZE=$original_histsize
+    if [[ -e "$_per_directory_history_directory" ]]; then
+      fc -R "$_per_directory_history_directory"
+    fi
+  fi
+  _per_directory_history_is_global=false
+}
+function _per-directory-history-set-global-history() {
+  if [[ $_per_directory_history_is_global == false ]]; then
+    fc -AI $_per_directory_history_directory
+    local original_histsize=$HISTSIZE
+    HISTSIZE=0
+    HISTSIZE=$original_histsize
+    if [[ -e "$HISTFILE" ]]; then
+      fc -R "$HISTFILE"
+    fi
+  fi
+  _per_directory_history_is_global=true
+}
+
+
+#add functions to the exec list for chpwd and zshaddhistory
+chpwd_functions=(${chpwd_functions[@]} "_per-directory-history-change-directory")
+zshaddhistory_functions=(${zshaddhistory_functions[@]} "_per-directory-history-addhistory")
+
+#start in directory mode
+mkdir -p ${_per_directory_history_directory:h}
+_per_directory_history_is_global=true
+_per-directory-history-set-directory-history
diff --git a/plugins/zsh_reload/zsh_reload.plugin.zsh b/plugins/zsh_reload/zsh_reload.plugin.zsh
index a435dbc8d..94945bd48 100644
--- a/plugins/zsh_reload/zsh_reload.plugin.zsh
+++ b/plugins/zsh_reload/zsh_reload.plugin.zsh
@@ -1,13 +1,12 @@
-zsh_cache=$HOME/.zsh_cache
-mkdir -p $zsh_cache
-
 # reload zshrc
 function src()
 {
   autoload -U compinit zrecompile
-  compinit -d $zsh_cache/zcomp-$HOST
-  for f in $HOME/.zshrc $zsh_cache/zcomp-$HOST; do
-    zrecompile -p $f && rm -f $f.zwc.old
+  compinit -d "$ZSH/cache/zcomp-$HOST"
+
+  for f in ~/.zshrc "$ZSH/cache/zcomp-$HOST"; do
+    zrecompile -p $f && command rm -f $f.zwc.old
   done
+
   source ~/.zshrc
-}
\ No newline at end of file
+}
diff --git a/themes/agnoster.zsh-theme b/themes/agnoster.zsh-theme
index 85b846cb5..2b33c48bc 100644
--- a/themes/agnoster.zsh-theme
+++ b/themes/agnoster.zsh-theme
@@ -69,7 +69,9 @@ prompt_context() {
 
 # Git: branch/detached head, dirty status
 prompt_git() {
-  local ref dirty
+  local ref dirty mode repo_path
+  repo_path=$(git rev-parse --git-dir 2>/dev/null)
+
   if $(git rev-parse --is-inside-work-tree >/dev/null 2>&1); then
     dirty=$(parse_git_dirty)
     ref=$(git symbolic-ref HEAD 2> /dev/null) || ref="➦ $(git show-ref --head -s --abbrev |head -n1 2> /dev/null)"
@@ -79,6 +81,14 @@ prompt_git() {
       prompt_segment green black
     fi
 
+    if [[ -e "${repo_path}/BISECT_LOG" ]]; then
+      mode=" <B>"
+    elif [[ -e "${repo_path}/MERGE_HEAD" ]]; then
+      mode=" >M<"
+    elif [[ -e "${repo_path}/rebase" || -e "${repo_path}/rebase-apply" || -e "${repo_path}/rebase-merge" || -e "${repo_path}/../.dotest" ]]; then
+      mode=" >R>"
+    fi
+
     setopt promptsubst
     autoload -Uz vcs_info
 
@@ -90,7 +100,7 @@ prompt_git() {
     zstyle ':vcs_info:*' formats ' %u%c'
     zstyle ':vcs_info:*' actionformats ' %u%c'
     vcs_info
-    echo -n "${ref/refs\/heads\// }${vcs_info_msg_0_%% }"
+    echo -n "${ref/refs\/heads\// }${vcs_info_msg_0_%% }${mode}"
   fi
 }
 
diff --git a/tools/install.sh b/tools/install.sh
index b9d2416da..e52f6ac56 100755
--- a/tools/install.sh
+++ b/tools/install.sh
@@ -10,6 +10,7 @@ if [ -d "$ZSH" ]; then
 fi
 
 echo "\033[0;34mCloning Oh My Zsh...\033[0m"
+hash git >/dev/null 2>&1 && /usr/bin/env git clone https://github.com/robbyrussell/oh-my-zsh.git $ZSH || {
   echo "git not installed"
   exit
 }