.osx: Disable smart quotes and dashes
.aliases: Add `reload`

`reload` invokes the shell as a login shell, which essentially reloads it.

Closes #247.
.aliases: Update RubyGems before updating installed gems

Closes #282.
.aliases: Add `npme`

`npme` is like `npm` except it uses a registry located in Europe, causing it to be much faster for Europeans. See <http://npmjs.eu/> for more information.

Closes #284.