[Front-end] [#177] Patched up isOwner conditionals
[front-end] [#177] Bug Fix
[Backend] #128, implemented HARD DELETION of activities and users.

1. When a user is deleted, all the user's activities will be deleted.
2. When an activitiy is deleted, all the people joining that activity will automatically unjoin and all the comments associated with that activitiy are all deleted as well.
[Backend] #174 now works temporary with the transformer format
[Backend] Wrapped check-if-friends into standard response format
[Backend] Fixed issue with friends post not working
[Front-end] [#182] Added friendService, Add Friend, Accept Friend and Delete Friend works
[Backend] [#182] Needed a way to get friend_status for each user when calling GET profiles
Merge branch 'master' of https://github.com/omfgitsjack/justplay into frontend
[Front-end] [#128] Implemented Activity Delete
[Front-end] [#182] Refactor naming of friendModule