[JENKINS-2673] Clarify that suggestion means polling just once per hour
Merge pull request #1318 from daniel-beck/JENKINS-2673

[JENKINS-2673] Clarify that suggestion means polling just once per hour
@since
Merge branch 'master' of git://github.com/jenkinsci/jenkins
Javadoc comment.
use class="setting-help" in radioBlock.jelly

All other places use this class for a td with help icon.
This improves rendering of the different strategies under "Restrict
project naming"
change default font to helvetica