Updated gamplay-encoder and gameplay-luagen for MacOSX
Merge pull request #704 from seanpaultaylor/next

Updated gamplay-encoder and gameplay-luagen for MacOSX
Updated gameplay-luagen for Windows.
Merge pull request #705 from seanpaultaylor/next

Updated gameplay-luagen for Windows.
Update gameplay-encoder/README.md
Update gameplay-encoder/README.md
Update CHANGES.md
Update gameplay-newproject.sh
Fixed reading of RAW8 and RAW16 heightmaps to read top-left to bottom-right instead of bottom-right to top-right.
Update CHANGES.md
Merge pull request #706 from sgrenier/next

Fixed reading of RAW8 and RAW16 heightmaps
Updated gameplay-encoder and gameplay-luagen for Linux
Merge pull request #707 from seanpaultaylor/next

Updated gameplay-encoder and gameplay-luagen for Linux
Rework description of contactIndex to better suit all platforms.
Fix input test for handling touch events.
Prevent mouse drag events during mouse capture on Mac.
Minor fix to input test to prevent drawing under virtual keyboard.
Merge pull request #708 from kwhatmough/next

Input test changes and fixes
Added Terrain test to gameplay-tests app (still a couple features to add to it).
Couple minor fixes to Terrain.
Updated gameplay-encoder to support object-space normal map generation from RAW8 and RAW16 files.
Added script camera to gameplay-tests.
Updated bar-descriptor.xml files for shader changes.