Cross-browser request animation frame
Cross-browser request animation frame

This adds a request animation frame api as a public utility.

michael-e/symphony-2,johnpuddephatt/symphony-2,jurajkapsz/symphony-2,mazedigital/jcilearn,avanteweb/symphony-2,DavidForster/symphony-2,alexnantel88/symphony-2,alexnantel88/symphony-2,blaXXabla/projet_test_symphony,NikoMostWanted/symphony-2,jonmifsud/symphony-2,ljonka/symphony-2,NikoMostWanted/symphony-2,jensscherbl/symphony,twiro/symphony-2,mazedigital/jcilearn,symphonycms/symphony-2,jensscherbl/symphony,DeuxHuitHuit/symphony-2,jonmifsud/symphony-2,brendo/symphony-2,bauhouse/sym-todo-list,brendo/symphony-2,DeuxHuitHuit/symphony-2,DavidForster/symphony-2,avanteweb/symphony-2,ljonka/symphony-2,roshinebagha/Symphony-Test,BloodBrother/symphony-2,bauhouse/sym-todo-list,blaXXabla/projet_test_symphony,symphonycms/symphony-2,jurajkapsz/symphony-2,roshinebagha/Symphony-Test,michael-e/symphony-2,twiro/symphony-2,mazedigital/jcilearn,johnpuddephatt/symphony-2,BloodBrother/symphony-2