cleanup travis ci configuration
move Gemfile, add `:integration` group
rubocop style updates
update deprecated berkshelf source format
more strict foodcritic checks
update test-kitchen arguments
don't fail CI run due to missing rake tasks
Merge pull request #85 from phlipper/test-cleanup

Test cleanup
Support encrypted_password in the pg_user recipe
add contribution from @brainopia to the README
Merge pull request #86 from phlipper/encrypted_password-pg_user

support `encrypted_password` for `pg_user` recipe

closes #82
Change encoding/locales to match

I'm not _exactly_ sure why, but the utf8 settings for encoding and locale caused an error when I tried to use them (using postgresql 9.3). Changing those settings to `UTF-8` fixed the issue and made the correct database with encodings.
Merge pull request #87 from tpitale/patch-1

Change encoding/locales to fix error
remove BitDeli badge
add contribution from @tpitale to README
expand individual test steps for CI:

* easier to see return status of each step
use past tense for integration tests
more detailed package output
remove helper which is no longer needed
loosen default chef version constraint