Fixed vim alias.

- Only set vim alias if MacVim is installed (using homebrew or not)
Merge pull request #235 from rafaelregis/fix_vim_alias

Fixed vim alias.
Add quickfixsigns module - shows which lines changed
I want to use ctrlp with regexp, not filename
overwrite zpreztorc
git st as status --short
remove diff color settings, conflict with solarized
add git lg
add vimrc.before
use my personal theme please
add vim plugins

- supertab
- vim-twig
don't show quickfix window automatically
update ctrl-p custom ignore

ignore symfony2 directories
ignore files
add several useful vim commands
set tab size of php & twig to 4
use diffmerge as mergetool for git
don't compile coffee script file automatically
add vimrc.after and remove duplicate config
move php and twig extension plugin to correct directory
install vimrc.after, ackrc