Change to PFQueryTableVC

- Change superclass to PFQueryTableViewController
- Change implementation to work with PFQuery
- Add swipe to delete single post
Merge branch 'master' into ivan
Fix a bug when tapping placeholder imageViews.
Remove last version's commented code
Change post button to nav bar

- Change post botton for "submit" button on nav bar
- Add final points to error texts
Bug fix on Feed and Map VC to show posts nearby

- Bug fix to show nearby posts from every user, not only the current one
Merge branch 'master' of https://github.com/TijoMONSTER/AdoptAFriend into efren

Merged changes from repo