Update block menu/book menu css and add wdn-sans-serif class
[gh-25] Improve color contrast on required '*' for accessibility
Remove unneeded css
Merge pull request #28 from ericras/issue-26

Closes #26 Update block menu/book menu css and add wdn-sans-serif class
Merge pull request #29 from ericras/issue-25

Closes #25 Accessibility color change on required '*'
Merge remote-tracking branch 'upstream/7.x-4.0.x' into issue-24

Conflicts:
	css/style.css