Added getLocation3D, getCenterCoordinate, and getAltitude to MapView.

Fixed bug where MapView.removeAllMaps() caused a crash.
Added unit tests for new location functions.
Updated documentation.
Updated native engine binaries.
Rebuilt all sample applications using new binaries.

Add release build of engine binaries.

Remove GPS switch from AltusDemo
Add guard against adding dynamic markers with null bitmaps.

Integrate native support for MBTiles map.

Update documentation, framework, and tutorials to latest build.