Updated unit tests to include following and unfollowing, meta data
update
updated home to send test events to correct URL.  Configured new content
controller, changed URL for content controller
Renamed EventData to Content. Renamed "data" field in events to
"content".  Suppress null fields in Events, things and Content in JSON
output.
Updated version to 0.5.0.SNAPSHOT in both pom.xml files
Added parent pom.xml so we can build the whole project easily from the
command line
Merge branch 'develop' of github.com:ubc-magic/thingbroker into develop
Merge branch 'develop' of github.com:ubc-magic/thingbroker into develop