GH170 - Added some nice gradient, shadow, glows to class elements.
GH170 - Small modification.
Removed some code that did nothing.
GH170 - Added glow on children too.

Fixed the white background on children on mobile too.
GH170 - Merge remote-tracking branch 'origin/GH170-NicerClassColors'

Conflicts:
	org.flowerplatform.editor.model/flex_src/org/flowerplatform/editor/model/renderer/BoxChildIconItemRenderer.as
	org.flowerplatform.editor.model/flex_src/org/flowerplatform/editor/model/renderer/BoxRenderer.mxml