.aliases: Remove npmjs.eu reference

See the deprecation notice: http://npmjs.eu/

Closes #448.
.functions: Make `mkd` `cd` into the last directory in the list

…rather than the first.

Closes #447 and #450.
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  .functions: Make `mkd` `cd` into the last directory in the list
  .aliases: Remove npmjs.eu reference