CB-12366: (ios) Reduce tmpWindow level to prevent overlapping statusbar

 This closes #209

Author: reidab

src/ios/CDVInAppBrowser.m

@@ -243,7 +243,7 @@ - (void)show:(CDVInvokedUrlCommand*)command
             UIWindow *tmpWindow = [[UIWindow alloc] initWithFrame:frame];
             UIViewController *tmpController = [[UIViewController alloc] init];
             [tmpWindow setRootViewController:tmpController];
-            [tmpWindow setWindowLevel:UIWindowLevelAlert];
+            [tmpWindow setWindowLevel:UIWindowLevelNormal];
 
             [tmpWindow makeKeyAndVisible];
             [tmpController presentViewController:nav animated:YES completion:nil];