Cache calls to brew --prefix
Update vim plugins: jedi, markdown, orgmode, pathogen, YouCompleteMe
Symlink the bin directory in earlier so that the bin scripts are available in the installer.
Add brew which-package
Use Ruby 1.9.3 from homebrew-versions since 2.0 has been released.
Make sure php54 gets installed before php54-imagick
Make sure APC is installed for PHP
Add watch(1)