Add comments to CommentModel
Added comments to UserModel.java
Merge branch 'master' of https://github.com/CMPUT301W14T10/Team-10-Project-W2014
Merge branch 'master' of https://github.com/CMPUT301W14T10/Team-10-Project-W2014
Created HeadModel, modified SubCommentModel to extend CommentModel
Merge branch 'Costa'
Fixed package used in HeadModel
Removed gen folder to get .gitignore working for gen files
fixed unused variable warning in UserModel.java
Added raw CreateCommentActivity.