Model and ModelInstance sync common methods
Only set Material Attributes if they are provided
Fix ObjTest
Removed display lists from Hiero.

Performance isn't important for Hiero and this was causing crashes on Linux.
SequenceAction fix, #463
Better handling of removing an action during the action.

And by better I mean fixing my previous fubar fix. #463
Removed use of SharedLibraryLoader for silly GWT.
Merge branch '3dapi' of https://github.com/xoppa/libgdx into misc
Merge branch 'master' of https://github.com/libgdx/libgdx into misc
Minor changes