add brew-cask plugin
Add new brew cask commands
Merge pull request #1 from KevinBongart/brew-cask

Add new brew cask commands
brew-cask plugin: use spaces instead of tabs
Merge pull request #2329 from pstadler/brew-cask

add brew-cask plugin
initial setup a la http://www.intridea.com/blog/2011/5/18/its-not-enough-to-bash-in-heads-youve-got-to-bash-in-minds-with-zsh#editinstallsh
modify behaviour for update to overwrite local change with remote origin/master
the proposed workflow means to manually push the changes to the repo and then sync them on all machines via update.sh
aliases for hgrep, pgrep, rgrep and global alias lafi (last file)
alias: ipython tunnel on ostwald