.aliases: Add `jsc` alias

Useful for testing code in JavaScriptCore.

Hat tip: https://twitter.com/RussB/status/420409644117262336 (via @rauschma)
Update .osx
Foo stuff
Merge branch 'master' of github.com:mewm/dotfiles

* 'master' of github.com:mewm/dotfiles:
  Foo stuff
  Update .osx

Conflicts:
	.git-completion.bash