Fix ctrlp settings that conflict with Fugitive [closes #18]

vim/plugin/settings/ctrlp.vim

@@ -1,3 +1,5 @@
+let g:ctrlp_custom_ignore = '\.git$\|\.hg$\|\.svn$'
+
 " Default to filename searches - so that appctrl will find application
 " controller
 let g:ctrlp_by_filename = 1
@@ -13,6 +15,7 @@ nnoremap <C-b> :CtrlPBuffer<cr>
 " Cmd-Shift-P to clear the cache
 nnoremap <silent> <D-P> :ClearCtrlPCache<cr>
 
+
 " Idea from : http://www.charlietanksley.net/blog/blog/2011/10/18/vim-navigation-with-lustyexplorer-and-lustyjuggler/
 " Open CtrlP starting from a particular path, making it much
 " more likely to find the correct thing first. mnemonic 'jump to [something]'