add git command shortcuts
Revert "add git command shortcuts"

This reverts commit b502376f4c602ae72c4bb05b97cb86bd9ac86dfe.
Merge branch 'master' of https://github.com/svassr/dotfiles

* 'master' of https://github.com/svassr/dotfiles:
  desactive grc use for svn. Need to make sure grcis well installed first
  Update .aliases
  Add git completion
Merge branch 'master' of https://github.com/svassr/dotfiles

* 'master' of https://github.com/svassr/dotfiles:
  ls is not compatible with -- arguments on mac
Merge branch 'master' of https://github.com/svassr/dotfiles

* 'master' of https://github.com/svassr/dotfiles: (147 commits)
  .osx: Add ExpandedStateFor* variants for OS X 10.9
  .exports: Explicitly use UTF-8 even for `LANG`
  .osx: Comment computer name settings
  .osx: Remove “disable opening and closing window animations”
  .osx: Change minimize/maximize window effect
  .osx: Allow installing Chrome user scripts via GitHub Gist or Userscripts.org
  .cask: Add Opera, Opera Developer and Opera Next
  .osx: Add missing value
  .gitconfig: Explicitly disable `indent-with-non-tab`
  .osx: Remove old keyboard illumination settings
  .functions: Add `a` alias for `atom`
  Brewfile: explicitly list non-default taps
  .osx: Make Dock more transparent
  Brewfile: install `pv` (pipe viewer)
  Brewfile: install `moreutils`, if only for `sponge`
  .vimrc: Explicitly use the Molokai theme
  Brewfile: Install ImageMagick with WebP support
  .osx: Kill `cfprefsd` after changing preferences
  Brewfile: Install `p7zip` (i.e. `7z` etc.)
  .osx: Support multiple `systemuiserver` pref files
  ...