fixed broken ios files

Fixed missing  '-'  in the most recent screenshot.m file.  Tough to see this change on github because it shows the deleted line with the minus sign to show its removal .  Without the dash, the code will not build and throws "expected identifier or '(' ".

Also added a 3rd argument in the .js file to match the new .m file.  Otherwise there is an index out of range error ( specifically "webView:decidePolicyForNavigationAction:request:frame:decisionListener: delegate: <NSRangeException> -[__NSCFArray objectAtIndex:]: index (2) beyond bounds (2)") caused by referencing an argument that doesn't exist.