[JENKINS-18224] Relaxing type parameter restriction on TransientActionFactory since useful mixin interfaces like Item do not extend Actionable.

[JENKINS-18224] TransientActionFactory

[FIX JENKINS-21303] There is a NPE here that can and does happen for real when an aggresive slave retention strategy interacts with post build triggers that want to do token macro expansion

[JENKINS-18224] Introduced Actionable.replaceAction, allowing getActions() to be deprecated except for subclasses.

Better for SecurityListener.authenticated to take a UserDetails, since some implementations (as for AD) may have additional information.

[FIXED JENKINS-20008] [FIXED JENKINS-18028] [FIXED JENKINS-18680] #1069: support for moving jobs into or out of folders.

[JENKINS-18678] [JENKINS-18028] Confirming (as suggested in #1069 by @oleg-nenashev) that build history is retained after a move into a folder.

[FIXED JENKINS-19826] element.setAttribute('name', …) does not work in IE in compatibility mode, so use prototype’s Element(…) which does.

[FIXED JENKINS-21254] Ensuring that all <link>s offered on the /login page can be read even by anonymous users without Jenkins.READ.

Various translation fixes

Added some french translations

Added some french translations

https://trello.com/c/MhG9Ksqa/12-windows-service-slave-launcher

First tried using excludedGroups and trying to work around SUREFIRE-984.
Made some progress, but not ideal since marked tests are omitted from output, rather than being listed as ignored.
Throwing AssumptionViolatedException from JenkinsRule is much simpler and seems to work better.
https://github.com/junit-team/junit/issues/116 notes its limitations.