Remove reference to a now-fixed bug.
Add extra tests for spec change relating to RadioNodeList

http://html5.org/tools/web-apps-tracker?from=8743&to=8744
Add tests for current pixel density and relevant mutations
Test srcset parsing
Cleanup the bufferedAmount tests a bit.
Correct the test for deletion of the bufferedAmount property.
Give the bufferedAmount tests useful names.
Add charset declarations to the bufferedAmount tests.
Cleanup the close tests a bit.
Move srcset test into a folder
Add sizes tests
Test var() in sizes
merging data: test files, fixing some wrong pass conditions
Add some tolerance to lastModified test
Give the close tests useful names.
Remove trailing whitespace.
Add tests for select an image source
Remove trailing whitespace.
reversing test for Content-Length, should not be faked
Tests for update the source set