DEVELOPER-926
fixed the developer materials bookmarking links. DEVELOPER-940
Merge pull request #487 from wesbos/DEVELOPER-940

fixed the developer materials bookmarking links. DEVELOPER-940
Update cdn.yml
Changes to support using vimeo albums

Conflicts:
	Gemfile.lock
	_layouts/video.html.slim
Add in standalone videos

Conflicts:
	Gemfile.lock
Upgrading Asciidoctor to 1.5.0
Adding some info that was missing before
Needed change to the DCP

We need to include a new preprocessor for videos now.
Update cdn.yml
Merge pull request #467 from pmuir/DEVELOPER-926

DEVELOPER-926 - try out using JPEGs
Merge pull request #489 from paulrobinson/DEVELOPER-360

DEVELOPER-360 Update to support Vimeo albums
DEVELOPER-842 normalise contributors at build time
DEVELOPER-842 temporary upgrade to my aweplug branch