allowing local site customizations to be unversioned

- this allows me to have promprietary stuff in my configs without them ending
  up on github

oh-my-zsh.sh

@@ -3,6 +3,8 @@
 # add a function path
 fpath=($ZSH/functions $fpath)
 
+for config_file ($HOME/.zshrc.*) source $config_file
+
 # Load all of the config files in ~/oh-my-zsh that end in .zsh
 # TIP: Add files you don't want in git to .gitignore
 for config_file ($ZSH/lib/*.zsh) source $config_file