.brew: Move casks to their own file
.osx: Add threaded email display settings for Mail.app
.osx: Remove old iTunes commands

They only applied to iTunes 10 and older anyway.
.osx: Make coding style more consistent
.osx: Disable inline attachments in Mail

Thanks to Christophe Platteeuw via Twitter: https://twitter.com/cplatteeuw/status/393465401310318592
.osx: Disable automatic spell checking in Mail.app
.osx: Stop iTunes from responding to the keyboard media keys

Commented out, as I actually use these keys.

Closes #265.
.osx: Suppress error messages when running `~/.osx` twice

Closes #266.
Merge branch 'master' of git://github.com/mathiasbynens/dotfiles

# By Mathias Bynens (7) and Erwann Mest (1)
# Via Mathias Bynens
* 'master' of git://github.com/mathiasbynens/dotfiles:
  .osx: Suppress error messages when running `~/.osx` twice
  .osx: Stop iTunes from responding to the keyboard media keys
  .osx: Disable automatic spell checking in Mail.app
  .osx: Disable inline attachments in Mail
  .osx: Make coding style more consistent
  .osx: Remove old iTunes commands
  .osx: Add threaded email display settings for Mail.app
  .brew: Move casks to their own file

Conflicts:
	.osx