Comment browsing reads from history cache now
Merge branch 'james'

Conflicts:
	GeoTopicsActivity/src/ca/ualberta/cs/team5geotopics/BrowseActivity.java
	GeoTopicsActivity/src/ca/ualberta/cs/team5geotopics/CommentListModel.java
Merge branch 'master' of https://github.com/CMPUT301W14T05/Team5GeoTopics