.functions: Add `calc`
.bash_profile: Move the `LANG` & `LC_ALL` exports into `.exports`
.osx: Remove the iTunes Ping settings

Apple officially closed the iTunes Ping service on September 30th, 2012 (http://i.imgur.com/U7bHo.jpg).
.osx: Document the various values for Hot Corners settings
.osx: Clarify that the iTunes settings are for pre-iTunes 11 only
README: Update Lauri Ranta’s hidden preferences URL

The previous URL now 404s.
Simplify $PATH

Leave all $PATH setting to the .path file
Remove unneeded functions & aliases

Job switch means these are no longer needed
Add notify-send alias, as OS X lacks this binary

Pass any notify-send messages to Growl via its CLI tool
Tabfixing aliases

Will likely be updated in the future
Merge branch 'master' of github.com:mathiasbynens/dotfiles

# By alrra (3) and others
# Via Mathias Bynens
* 'master' of github.com:mathiasbynens/dotfiles:
  README: Update Lauri Ranta’s hidden preferences URL
  .osx: Clarify that the iTunes settings are for pre-iTunes 11 only
  .osx: Document the various values for Hot Corners settings
  .osx: Remove the iTunes Ping settings
  .bash_profile: Move the `LANG` & `LC_ALL` exports into `.exports`
  .functions: Add `calc`

Conflicts:
	.bash_profile
	.exports
	.osx