Always use php-mode's ac-dict for auto-completion

This makes it easier to use this ac-source in modes other than php-mode,
which can be handy when writing PHP-based templates.

Signed-off-by: Eric James Michael Ritz <lobbyjones@gmail.com>
Update the version number to 2.2.1
This fixes #14. Tilde expansion.

Signed-off-by: Eric James Michael Ritz <ejmr@plutono.com>
Add Alessandro Madruga Correia to the list of contributors
Merge branch 'github/pr/18'

* github/pr/18:
  Add Alessandro Madruga Correia to the list of contributors
  This fixes #14. Tilde expansion.