Link color returned to blue to match production, Redmine2684.
Use font-awesome help icons and make size reasonable in headers.
help icon properly aligned elsewhere.
Fixed issue where hover on active link would cause section to be unreadable.
Merge branch 'ui-updates-4-master' into sequence-fixes-ui-updates

Conflicts:
	src/sgd/frontend/yeastgenome/static/templates/locus.jinja2
Merged in more ui fixes. Also removed locus page, that doesn't belong in this release.