Add compatibility for SCMTriggerItem-related changes in 1.568
Merge pull request #1355 from daniel-beck/SCMTriggerItem-compat

Add compatibility for SCMTriggerItem-related changes in 1.568
[FIXED JENKINS-23921] new <div>s layout doesn't work with IE8
[FIXED JENKINS-23263] JUnit reporter moved to a plugin.
Merge commit '16197ea502bc2f370f70b65242b9ccb2f0583372'
Moving help files to their recommended location.
Normalizing form binding.
Partly normalizing form binding for User.
Cannot seem to move war/src/main/webapp/help/user/*.html since there is no Descriptor to bind doHelp to.
Deleting help files that were supposed to be in ldap-plugin.
Partly normalizing form binding.
Moving some more help files to their natural homes.
Adjusting test to match different input names (now form-bound).
Unclear what cvs-browser.html used to be bound to, but seems obsolete.
add an empty config.jelly file for IdStrategy so they can be used with a dropdownDescriptorSelector
Also need @DataBoundConstructor annotated constructors
Playing with a single "/plugin/styles.css" ala JENKINS-24223