Added Ack.vim.
Added git-wtf config file
Merge remote-tracking branch 'origin/master'

Conflicts:
	.gitmodules
Some filetype specific changes.

Change tab behaviour in javascript and enable spell checking in commit
messages.
Update from work machine

Includes updates to tmux config adding:
	- Forced UTF-8 mode
	- Mouse mode
	- Increased scrollback
	- Importing local tmux config if there
Also updated pathogen to latest.

BUG-ID:  N/A