Downstream updates from stapler/stapler#131

The stapler API was built using servlet 2.5 and yet Jenkins uses 3.1.
This meant some of the code that stapler used was missing new methods
that where part of the updated spec and if a plugin happened to call
them you would end up with a LinkageError or some other crazyness.

This also make Jenkins depend on a dummy version of the old serlet-api
maven co-ordinates such that if any plugin gets aa dependency on it
transitivly (e.g. Jenkins test harness) they will get a version with no
code so the classpath should always be clean (this was more an issue for
eclipse than an mvn command)

There's a failure with accmod using DoNotUse. So taking the
easy path here to move forward. This will already have the intended
effect: clarify that TimeUnit2 is not to be used anymore.

https://github.com/jenkinsci/remoting/blob/master/CHANGELOG.md#312

As attached got *removed* from m-assembly-p:3.x

* Update to latest pom for animal-sniffer 1.16

* Bump to 1.39 release

* Use ClassFilter.appendDefaultFilter.

* FindBugs

* Update Jenkins Remoting to 3.11, fix reported FindBugs issues

* Update to Jenkins Parent POM 1.39

* Pick the released version of Jenkins POM

* [JENKINS-41631] Enforce upper bound deps on Jenkins core.

* stapler 1.252

Signed-off-by: Nolivier lamy <olamy@apache.org>

* Update Remoting in Jenkins core to 3.8

* JENKINS-39370 - Introduce support of Work Directories in remoting (opt-in).
* PR 129 - Allow configuring java.util.logging settings via a property file (-loggingConfig or JUL system property). See the Logging page for more details.
* JENKINS-37567 - Change of the code signing certificate

More info: https://github.com/jenkinsci/remoting/blob/master/CHANGELOG.md#38

* [JENKINS-39370] - Add direct tests for JNLP Launcher start with -workDir

* Pick Remoting 3.9

* Improve error message of LauncherTest#remoteKill()

* Update Remoting to 3.10