created User object. Refined the pushing of a CommentModel.
deleted es test activity
integrated putIndexService with the CreateCommentActivity.
added user class. implemented bitmap serializer. fixed jars.
Merge branch 'slmyers'

Conflicts:
	GeoTopicsActivity/res/layout/activity_geo_topics.xml
	GeoTopicsActivity/src/ca/ualberta/cs/team5geotopics/CreateCommentActivity.java
	GeoTopicsActivity/src/ca/ualberta/cs/team5geotopics/StartActivity.java