Fixes ctrlp_user_command for git repositories

The patch I submitted in #245 was incorrect it was missing the changes 
from https://github.com/kien/ctrlp.vim/issues/174 which ensure that 
untracked files will also be included in the search. This fixes that.
Remove unnecessary/extra ts, sw, et directives

Changing the shiftwidth, tabstop, or expandtab settings in the Vim UI
section did not affect where the indent guides were placed.
Removing this line fixes this issue.
Add Vim to install instructions
Merge pull request #281 from LinXitoW/patch-1

Add Vim to install instructions
Remove pymode's "set number"

If pymode_options is set to 1 and "number" is unset, pymode enables number for python files.
Set snipmate compatibility mode for neosnippet

Prevents a number of snipmate snippets from throwing errors.

See: https://github.com/Shougo/neosnippet/issues/86
Merge pull request #293 from lucisferre/patch-2

Set snipmate compatibility mode for neosnippet
Merge pull request #292 from rguillebert/3.0

Remove pymode's "set number"
Merge pull request #278 from MrDomopanda/3.0

Remove unnecessary/extra ts, sw, et directives
Merge pull request #294 from lucisferre/patch-1

Fixes ctrlp_user_command for git repositories
adding fix to override easy-window bindings
Merge pull request #299 from jamestomasino/easyWindows

Add option to skip window navigation mappings and keep digraph key
add option to disable neosnippet mapping blocking digraphs
Merge pull request #300 from jamestomasino/neosnippet

add option to disable neosnippet mapping blocking digraphs
Adding support for silver searcher
Merge pull request #303 from nicolaslattuada/3.0

Adding support for silver searcher
Merge branch '3.0' of https://github.com/spf13/spf13-vim into 3.0