[cordova|misc|stability|webapi|wrt] Update webrunner

https://github.com/testkit/webrunner (commit 9e01616dbf2d565fcd18032f5685f0e74c455ae8)

- Change the license to BSD
- Replace tab with two whitespaces
- Remove executable mode
Merge pull request #1367 from haoxli/update-webrunner

[cordova|misc|stability|webapi|wrt] Update webrunner