prevent random widget from applying nested block style. update css in classic, ivy flavor, college, modern, vibrant and shade flavor.
float more links to the right side of a block
Download core using tar, instead of git.
Remove flush all caches from profile.
Merge pull request #5428 from openscholar/core-make

Download core using tar, instead of git
Merge branch 'SCHOLAR-3.x' into travis-300