rework homepage with new video
Updated Download Page

* Make it clear what the easiest path to getting started is (Activator)
* Content duplication of the proposed changes to the getting started doc for sbt and Maven
fix version in maven dep
Update for 2.0.0-RC1
Fix for new jekyll version
Bring back links and more precise fix (not have <> enclosed url alone in line)
Remove Merge commits from 2.0.0-RC1 commit list
Move script tag for home page from the include into the layout.

A recent Jekyll update causes invalid code for script tags in
includes.
Merge remote-tracking branch 'refs/remotes/origin/pr/3' into 2.0

Conflicts:
	_includes/frontpage.html
Merge remote-tracking branch 'refs/remotes/origin/pr/2' into 2.0