Renamed hibernate and util directories to match module names.

Because it's clearer to do it that way.
Merge pull request #8 from krotscheck/feature/folder_naming

Renamed hibernate and util directories to match module names.
Created configuration feature

A centralized configuration feature for the jersey2-toolkit.
Makes any properties found in the jersey2-toolkit.properties
accessible to the injection scope. Used for configuration of
jersey2-toolkit features, not for features that require their
own configuration files (such as hibernate.properties).