Refactor bridge benchmark page.
Refactor bridge benchmark page.

- Add an initial delay
- Add a delay between tests
- Don't use setTimeout
- Measure more permutations.

apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,corimf/cordova-mobile-spec,lorinbeer/cordova-mobile-spec,corimf/cordova-mobile-spec,corimf/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,polyvi/xface-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,polyvi/xface-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,polyvi/xface-mobile-spec,corimf/cordova-mobile-spec,corimf/cordova-mobile-spec