Fix android.view.WindowManager$BadTokenException crashes

[zsoltboldizsar]

Connected issue #31

The fix consists of checking whether the host activity, where the dialog is about to be shown, is still running and only proceed if it is, hence avoiding the crash from happening.

[ccorcos]

I will test this out in the next week or two.

[ccorcos]

The default promptInterval was changed from 10 to 1 btw.

int promptInterval = webView.getPreferences().getInteger("CRIPageLoadPromptInterval", 1);

[zsoltboldizsar]

Changed it back to its original value. Thanks for your time.

[ccorcos]

Its in production. No more crashes :)