changed user model so users now have a 5 digit unique key
meal buddies is roughly implemented in the backend, adding a user of a specific id adds each other with an extra character (either ! or ?)
now does a check to see if the buddy a user is trying to add is in the database
confirming a pending request now works
deleting a buddy and rejecting a pending request now works
if you add manually a user that has added you recently, it confirms the request
commenting code, removing redundant function
Merge branch 'master' into mealBuddiesBackend
Merge pull request #51 from nfeliciano/mealBuddiesBackend

Meal buddies backend