Fix a layout loop caused by nil image

Closes #596

Author: LeoNatan

LNPopupController/LNPopupController/Private/_LNPopupBarShadowedImageView.m

@@ -98,7 +98,7 @@ - (void)setContentMode:(UIViewContentMode)contentMode
 
 - (void)setImage:(UIImage *)image
 {
-	if([self.image isEqual:image] == NO)
+	if(self.image != image && [self.image isEqual:image] == NO)
 	{
 		[super setImage:image];
 

LNPopupControllerExample/LNPopupControllerExample/Supporting/AppDelegate.m

@@ -12,7 +12,6 @@
 
 @interface NSBundle ()
 
-- (NSString *) localizedStringForKey:(NSString *)arg1 value:(NSString *)arg2 table:(NSString *)arg3 localizations:(id)arg4;
 - (NSAttributedString *)localizedAttributedStringForKey:(NSString *)key value:(NSString *)value table:(NSString *)tableName localization:(id)arg4;
 @end