.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.
Hide iTerm2 from dock (assumes iterm2 was installed with the cask script in this repo)
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  .aliases: Add `npme`