Merge pull request #29 from jenkinsci/master

release
explicit role check
typo
support m2release plugin
jelly syntax
ui review
graph legend
graph color
cross pluign class loading
graph column
graph column
graph column
cleanup and document
use --non-recursive for cascade maven goals
use non destructive layout update
graph column tool tip
Merge pull request #6 from barchart/master

release