Groom Gemfile. Fit into one style
Update form to hot new path
Replace update from member to collection
As exception is used - we need to interpolate this string
Suggest an in-memory db for testing.
Seed the in-memory test db.
Merge pull request #100 from openSUSE/test_in_memory

Suggest/allow an in-memory db for testing.
Merge pull request #90 from openSUSE/review_140430_style_cleanup

[Review] Request from 'KalabiYau' @ 'openSUSE/osem/review_140430_style_cleanup'