Using gameAssets to resolve dependencies in ScaledTextureLoader instead of the file.sibling() method, which causes null pointer exceptions in engine
resolve() method unified in EditorGameAssets and GameAssets
Bug fix in DesktopPlatform - null ImageUtils returned caused NullPointer in repo builder
Bug fix in EditorDemoBuilder - recent changes in api caused games saved by Json in EditorDemoBuilder be not readable
Moving method getRendererDimension from RepoLibraryBuilder to parent class EditorDemoBuilder - needed for next commit
Methods added to automatically center origin in elements created with EditorDemoBuilder. Applied to PlanesDemo, to see if bug gets fixed https://github.com/e-ucm/ead/issues/937. Not lucky :(
Merge pull request #938 from jtorrente/builderfixes

Several bug fixes and improvements in RepoBuilder, GameAssets, and Demos