Merge pull request #12 from tvaughan77/master

Centralizing some common properties and updating PMD plugin to know about our targetJDK
Merge branch 'master' of github.com:opower/opower-parent
[maven-release-plugin] prepare for next development iteration
RE-1661 fixing misconfiguration of our maven-release-plugin.  Putting the global configuration in our reporting section doesn't do anything for our normal processes; we need it in the build/pluginManagement section