Fix Ag functions

I believe this is what is intended? It was not working for me like it was...
Merge pull request #474 from lfilho/patch-1

Fix Ag functions
Remove tagbar settings [Fix #464]
Merge branch 'master' of https://github.com/skwp/dotfiles

* 'master' of https://github.com/skwp/dotfiles:
  Remove tagbar settings [Fix #464]
  Fix Ag functions

Merging with upstream master.