fix font file selector
better handling of the fonts loaded from file: save/load in settings and update UI accordingly
added batch mode to Hiero :)
rearrange Screen methods to represent lifecycle better
Fixes #2517
Update Javadoc for pause/resume
Add MeshBuilderTest; normalTransform should be Matrix3; use color to tint specified vertex colors.
Use IntMap to store pointer against pointer UUID. Fixes #2516
Label#setEllipse -> Label#setEllipsis.

closes #2529
correct color scaling in vertex shader
Merge pull request #2528 from Tom-Ski/gwt

Use IntMap to store pointer against pointer UUID. Fixes #2516
Merge pull request #2530 from vmilea/alpha

correct color scaling in vertex shader
Add null check in BitmapFont#toString()

BitmapFont loaded from FreeTypeFontGenerator does not have a fontFile set.

Fixes #2510
fix error when building native libraries
Removed unnecessary code
Merge pull request #2533 from obigu/scaling

Removed unnecessary code
Add ability to save atlas from PixmapPacker

Closes #2381
Remove unnecessary call to stop before release

The media player can be released from any state.

Closes #2470
Add PixmapPackerIO

Moved save from PixmapPacker into PixmapPackerIO to more easily manage GWT compatibility.
Merge pull request #2515 from sinistersnare/lifecycle

rearrange Screen methods to represent the android lifecycle better
Rename *SpriteBatch fields to *Batch

Closes #2331