First batch of i18n tests: translate mode
Updated translate attribute tests
Second update of translate attribute tests
Add media resource selection tests
Remove <base> elements
drawSystemFocusRing draws a focus ring
Added two false tests for drawSystemFocusRing
Removed unnecessary operation in drawSystemFocusRing_001. Added test for complex path in drawSystemFocusRing_004
Minor comment change in drawSystemFocusRing_004
Added one more test with element p
Added tabindex on drawSystemFocusRing_005
Minor change for drawSystemFocusRing_001
Renamed drawSystemFocusRing to drawFocusIfNeeded
Add a a warning to Blob-constructor.html.
Test null and undefined as the Audio constructor argument

Per WebIDL, an undefined optional argument should be treated as a
missing argument. Also test null for extra paranoia.
Remove the reporting/ directory
Remove old, unused harness
Remove tests obsoleted by 2d.gradient.object.invalidcolour.html.
Merge BlobBuilder.html into historical.html.
Merge pull request #527 from Ms2ger/warn-sequence-Blob

Add a a warning to Blob-constructor.html.