Fix gallery for tablets and includes a discrete icon to indicate  amplification.
changes amplification ico from red background to transparent
schema.org/Article metadata included as RDFa, now we must modify byline and keywords viewlets to include metadata (issue #47)
- Add metadata support to byline and keywords viewlets.
- NITF view validates as HTML5
some missing metadata
fixing date metadata...
Merge branch 'issue_47' of github.com:collective/collective.nitf into issue_47

Conflicts:
	src/collective/nitf/templates/view.pt