[maven-release-plugin] prepare release jenkins-1.581
[maven-release-plugin] prepare for next development iteration
updated changelog for release
Update package name reference.

Update package name reference from Hudson to Jenkins.
updated changelog as a part of the release
merged back the RC branch
creating an RC branch
the trunk is toward 1.583-SNAPSHOT
Merge pull request #1403 from amaurymedeiros/patch-1

Update package name reference.
If during hudson-dev:run we have updated a bundled plugin, honor that pin at next start.
Merge commit 'be76d0938401be581c66fbb2f274e95660883904'
Changed to use uithemes plugin + css based icons