added section about how to correctly add spec links in tests
updated wording per @plinss suggestion
Merge pull request #588 from rhauck/speclink-note

added section about how to correctly add spec links in tests
update w3ctestlib
fixes Webkit bug 135924. these tests were just plain wrong - invalid args should always return a none, never auto
Merge pull request #595 from rhauck/fix-wk-bug-135924

fixes Webkit bug 135924