Only define an auto-completion source on request

In some circumstances, blindly calling eval-on-load as we had previously
can cause errors.

By pulling it inside payas/ac-setup, we prevent that from happening.

Signed-off-by: Eric James Michael Ritz <ejmr@plutono.com>
Require auto-complete before using ac-define-source

instead of relying on eval-on-load, as the crash seems to still happen
once per Emacs session with eval-on-load.

Signed-off-by: Eric James Michael Ritz <ejmr@plutono.com>
Merge branch 'github/pr/20'

* github/pr/20:
  Require auto-complete before using ac-define-source
  Only define an auto-completion source on request
Bump the patch version number thanks to bug-fixes from Nate Eagleson