[CB-3328] - chrome version >= 27 breaks flex-box usage

drive-by fix:
- excise grunt, replace usage with wr
[CB-3319] - Chrome is setting window properties which now breaks Weinre

https://issues.apache.org/jira/browse/CB-3319

removed the code which places the Web Inspector domain interfaces
into properties of window
[CB-2650] - Weinre style inspection breaks with normalize.css

https://issues.apache.org/jira/browse/CB-2650
[CB-604] - weinre doesn't work in strict mode

https://issues.apache.org/jira/browse/CB-604
adds support for all browsers