Adds a new SC.LinkView for creating simple programmable HTML anchors.
Updates unit test so that it should still be valid in PhantomJS environment.
Adds feature detection for new <a> attributes and uses them to prevent failing tests on other environments. Also adds the WAI-ARIA role to SC.LinkView output.
Merge pull request #1217 from sproutcore/team/publickeating/link_view

Adds a new SC.LinkView for creating simple programmable HTML anchors.