Ensure test query for Grunt returns results

Tough to debug if the test query returns nothing. This will avoid that
in the future
Fix typo in grunt Repo::check, DRY up conditional

There’s no `$plugin` inside this method, so this corrects things to
use the `$pkg` variable that’s passed in to this method.

Fixes #30
Bump to v2.03, update alfredworkflow
Merge pull request #47 from jeffbyrnes/fix-grunt

Fix a typo in the grunt search to get it working again