[ivi-tct] Sync to latest the webrunner scripts

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

- Change the license to BSD
- Indent using two spaces rather than tab
- Remove executable mode in need
Merge pull request #1449 from zqzhang/webrunner-sync

[ivi-tct] Sync to latest the webrunner scripts