Merge pull request #254 from NiklasMerz/loading-spinner

CB-13659 (iOS) Add hidespinner option

src/ios/CDVInAppBrowser.h

@@ -57,6 +57,7 @@
 @property (nonatomic, copy) NSString* navigationbuttoncolor;
 @property (nonatomic, assign) BOOL clearcache;
 @property (nonatomic, assign) BOOL clearsessioncache;
+@property (nonatomic, assign) BOOL hidespinner;
 
 @property (nonatomic, copy) NSString* presentationstyle;
 @property (nonatomic, copy) NSString* transitionstyle;