Temp checkin

Signed-off-by: Hin Lam <max21226@Hin-Lams-iMac.local>
Gray out Facebook button after liked.
Report IAP price in correct currency.

Signed-off-by: Hin Lam <max21226@Hin-Lams-iMac.local>
Merge remote-tracking branch 'max21226/iap_price' into rotato_master

Conflicts:
	Rotato.xcodeproj/xcuserdata/max21226.xcuserdatad/xcdebugger/Breakpoints.xcbkptlist
	sources/BuyCoinsMenu.m
	sources/IAPHelper.m

Signed-off-by: Matt Cleveland <mgcleveland@gmail.com>