Group.checkAll allows you to check if the same property exists across all children of the Group and is set to the given value (thanks @codevinsky #1013)
Group.checkProperty allows you to check if the property exists on the given child of the Group and is set to the value specified (thanks @codevinsky #1013)
Phaser.Utils.setProperty will set an Objects property regardless of depth (thanks @codevinsky #1013)
Phaser.Utils.setProperty will set an Objects property regardless of depth (thanks @codevinsky #1013)
Phaser.Utils.getProperty will get an Objects property regardless of depth (thanks @codevinsky #1013)
New 2.0.7 build