Resolves some java warnings
Updates maven release plugin configuration

The config here matches that I use with Elephant Bird and facilitates creation of staging releases which aren't seen in origin master till the release has been vetted.
Merge pull request #49 from sagemintblue/hazen_fix_warnings

Resolves some java warnings
Merge pull request #50 from sagemintblue/hazen_update_release_conf

Updates maven release plugin configuration
Merge branch 'master' into twitter