Don't use sudo if implicitly called by Pacman frontend

Don't rely on alias expansion to handle Pacman because aliases
are not expanded in sudo.

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Revert "Remove utility aliases for Cygwin"

This reverts commit d368d0536b7e857b8bd98cb7f5f547bac8b96bac.
Revert "Warn that Cygwin is not supported"

This reverts commit b1abe7a84538097bf93e2c6677cedc7d7a980f68.
[Fix #516] Define ZLE functions separately
[Fix #522] Do not load the terminal module in non-graphical terminals
Fix setting the 'pac' alias
[Fix #535] Set Pacman frontend to 'pacman' when none set
[Fix #361] Load chruby when found
Add double slash after Bwana.app's man protocol

Safari 6's unified location and search bar can no longer tell the
difference between a protocol and a colon search.
Remove Bwana.app support

Bwana.app has been stale for years. It no longer works properly.
Add capability to browse man pages in Dash.app
Cast AppleScript paths to text
Make osx functions autoloadable
Update osx alias descriptions
Add functions to display and delete osx download history
Prefix rarely used osx functions
Disable glob for bower

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
[Fix #541] Do not auto-load screen/tmux inside of Emacs/Vim

When Emacs and Vim are launched from outside of an interactive shell,
$TMUX and $STY are not set; check for Emacs and Vim environment
variables instead.

Signed-off-by: Sorin Ionescu <sorin.ionescu@gmail.com>
Fix a test operator bug introduced in e5a0e33
[Fix #551] Rename tmux auto-start session