add GOPATH example for ~/.extra file in README
Merge branch 'master' of github.com:vishaltelangre/dotfiles

* 'master' of github.com:vishaltelangre/dotfiles: (412 commits)
  source '.functions' at login
  add function to free unused memory
  add function to see government declared holidays
  troll face on gmail!
  add defunkt's ~/.js hack for chrome
  change default zsh theme
  wtf, .aliases wasn't loading at shell login
  remove instaweb config from .gitconfig
  some fixes
  add emacs related gitignore entries
  add emacs no window alias
  add irbtools and dont't use hirb btw
  add irbtools and resembling hacks
  add git instaweb config to .gitconfig
  fix sourcing unnecessary dotfiles
  update shell script to take absolute path of project directory
  modify shell script to sync dotfiles
  add bundler exec to get rid of prepending [31mCould not locate Gemfile[0m to ruby/rails commands ever
  add .gist gem dotfile
  add .pryrc
  ...