(Android Location) Fix init function
[Android] Fix a bug in the DetectCoreDirectoryFragment.

Would crash if an unsupported file was tapped twice because it would set the inFileBrowser boolean to false, thus leading to the attempt to launch said unsupported file. Fixes this.

Also made it display a brief toast if no cores support the extension of the file.
Merge pull request #433 from lioncash/master

[Android] Fix a bug in the DetectCoreDirectoryFragment.
(Android Location) Add metadata to manifest
(Android location) onConnected/onDisconnected reimplemented - still don't seem
to get to onLocationChanged though
(iOS) Fix issues with orientation locking.
(iOS) Hide the Load Content options while content is already running.
Merge pull request #434 from hizzlekizzle/master

More overlay updates
(Android Location) Some changes - still not working
(Android location) Gets a bit further but still not calling onLocationChanged - just renders the text for the first location retrieval and nothing else after that
fixed ugly, stretched 'next overlay' buttons and fixed a few more stretched buttons I missed before