ARC support

By default the library and the demo start with ARC disabled. The library supports both ARC disable and enable options because it's using ARC safe macros, so the compiler is substituting the macros with simple assigns or release/autorelease messages. Here is how to activate ARC

ARC-enable

####At first you need to select the library target

####Select "Build Settings"

####Enable ARC

Do the same for FPPopoverDemo if you want to use the ARC-enable library in the demo.