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
add support for minitest-handler verification
Merge pull request #89 from phlipper/minitest-handler

add initial support for `minitest-handler` test coverage
allow controlling how to restart postgres
implements phlipper/chef-postgresql#83
rubo cop complains and never restart for commands which do not need it
fix up tests
include readme documentation on how to use cfg_update_action
explicitly approve instance of FC037 "violation"