Fixes repeating MaterialParameter warnings each frame to only log once for missing uniforms and unset parameter values.
Merge pull request #1347 from seanpaultaylor/next

Fixes repeating MaterialParameter warnings each frame to only log once for missing uniforms and unset parameter values.
Updates to CHANGES.md and README.md for v2.0.0
Merge pull request #1348 from seanpaultaylor/next

Updates to CHANGES.md and README.md for v2.0.0
Remove arrow keyEvent form translation to better showcase the Textbox cursor movement behaviors.
Merge pull request #1349 from seanpaultaylor/next

Remove arrow keyEvent form translation to better showcase the Textbox cursor movement behaviors.