Added dot-env plugin

Dot-env is a cross-platform, cascading Zsh environment system for those who work on different hardware and OS environments.

See: https://github.com/midwire/.env

plugins/dot-env/global/global_path.sh

@@ -0,0 +1,31 @@
+paths="${DOT_ENV_PATH}/bin
+/sbin
+/bin
+/usr/X11/bin
+/usr/local/bin
+/usr/sbin
+/usr/bin"
+
+EGREP=`which egrep`
+function pathmunge () {
+	if ! echo $PATH | $EGREP "(^|:)$1($|:)" > /dev/null ; then
+		if [ -d "$1" ]; then
+			if [ "$2" = "before" ] ; then
+				PATH="$1:$PATH"
+			else
+				PATH="$PATH:$1"
+			fi
+		fi
+	fi
+}
+
+for p in $paths; do
+	pathmunge $p
+done
+
+# Prepend path with $HOME/bin
+pathmunge "$HOME/bin" before
+
+PATH=`echo $PATH | sed -e 's/^\://' -e 's/\:\:/:/g'`
+unset paths
+export PATH