NEW
* Feedback form

UPDATED
* Explore shows worldwide results after denying location
* Show generic user icon in drawer and profile when user has no photo

FIXED
* Explore shows nearby species after location permission granted
* Stopping upload no longer prevents future uploads
* My Obs should not lose scroll position when returning from editing
* Allow popups in web view, which may enable PayPal on the Donate screen
* Crash on ObsEdit when saving an obs w/ photo but w/o location permission
