Merge pull request #24 from unholyhen/master

Balloon: New difficulty, representation and animations.
Remove unnecessary comma
Added new methods (and rename)

Renamed basicMath to incrementalSteps
ChooseScenario bugfix for method
Phaser update

Group now have a width and height set. We should not set it ourselves.
Merge remote-tracking branch 'upstream/master'
Phaser update

Fixes emitter issues
Bugfix: Agent name was overwritten by Phaser
Agent: Documentation update
SignedNumberRepresentation added
ButtonPanel now has options min and max

This gives you a wider range of options for the panels, such as using
negative numbers or a specific range.
Phaser update - buttons were malfunctioning
Merge remote-tracking branch 'upstream/master'