Fixed issue with popover not being attached to button. Added support attaching popover to the center of the passed in view.
Fixed issue with popover not being attached to button.
Added support attaching popover to the center of the passed in view.

timanrebel/TiSocial.Framework,rborn/TiSocial.Framework,viezel/TiSocial.Framework,timanrebel/TiSocial.Framework,rborn/TiSocial.Framework,timanrebel/TiSocial.Framework,viezel/TiSocial.Framework,rborn/TiSocial.Framework