This is a combination of 7 commits.
[3fe9e69] created the PostType models
[fd8101d] Added PostTypes to context class
[aa74dd2] Rewrote the PostService class
[1edeb2b] Rewrote PostService interface.
[82a1140] Rewrote PostService class and PostController
[157cc2f] Cleaned up UserController
[23bf503] version bump

resolve #8 and #15