Bugfix in describeTypeJSON's addTraits function
Bind stubs for GameInput-related classes in the natives linker

Needed for the "The Sea Has No Claim" game.
Bind stubs for Multitouch-related classes in the natives linker

Needed for the "The Sea Has No Claim" game.
Merge pull request #1456 from tschneidereit/nat

Bugfixes for "The Sea Has No Claim" game