[webapi] Update lockOrientation-basic.html converted from Blink Layout Test

- Integrate license info into the test file after <!DOCTYPE html>
- Update the spec link to reflect latest Blink implementation
- Remove the author Intel as we are not the original author
- TODO: update the test logic after Crosswalk rebases to Chromium 38
  https://chromium.googlesource.com/chromium/blink/+/master/LayoutTests/screen_orientation/lockOrientation-basic.html