Add explicit import for UIKit to internal classes.

nlutsenko · nlutsenko · commit d86887bf057e · 2015-12-11T12:00:47.000-08:00
diff --git a/ParseFacebookUtils/Internal/AuthenticationProvider/PFFacebookAuthenticationProvider.h b/ParseFacebookUtils/Internal/AuthenticationProvider/PFFacebookAuthenticationProvider.h
@@ -8,6 +8,7 @@
  */
 
 #import <Foundation/Foundation.h>
+#import <UIKit/UIKit.h>
 
 #import <Bolts/BFTask.h>
 
