Add Sublime Text 2 alias for Linux.

Detects the platform using "uname", and sets the alias accordingly.
If you are using Linux, this assumes that you have created a
symbolic link to /usr/bin/sublime_text.

plugins/sublime/sublime.plugin.zsh

 # Sublime Text 2 Aliases
-alias st='/Applications/Sublime\ Text\ 2.app/Contents/SharedSupport/bin/subl'
+#unamestr = 'uname'
+if [[ uname == 'Linux' ]]; then
+	alias st='open -a /usr/bin/sublime_text'
+elif  [[ uname == 'Darwin' ]]; then
+	alias st='open -a "/Applications/Sublime Text 2.app'
+fi
 alias stt='st .'