Merge pull request #51 from jessebeach/yaml-config

More test to WCAG mapping (incomplete, but progress). Thanks, Jesse!
Made acronym/abbr tests not fail on each other's elements.
Found a number of eventhandler tests still, cleared.
Mapped more failure techniques.
Thanks, Jesse!
Added 508 guideline just so we have two test cases.
Missed two different techniques in 508.
Linted some code.
Added custom grunt task to make a simple test array from a guideline JSON file.
Mapped flicker tests.
Grunt build failed, fixed.
Fixed a few orphaned tests.
Watch task.
Included iFrames in frame having a title test. Added unit tests.
Made Frame placeholder test also capture iFrames.
Fixed watch
Mapped flicker, frame tests.