animated UIview for legend

still only working on click of allergen level label, will work with you to try and get it to work when u click on the UIview it self,   did not delete the TALegendViewController, just incase! but figure we can soon!
SPIKE DONE!!! BOOOOM!!!!!

got gif to animate in background!!! GIF is fought draft! plan to fix it very very soon! man i want to put that in the done column so badly!!!!!!!
Merge pull request #23 from deebost/master

animated UIview for legend