[FIXED JENKINS-21622] Release workspace leases (and avoid @2) even if post-build actions throw LinkageError.

Taking advantage of https://github.com/stapler/stapler-adjunct-codemirror/issues/1 for new CodeMirror.

[FIXED JENKINS-22607] Avoid loading recent builds when deletion of builds older than some date has been requested.

[FIXED JENKINS-22583] Use unique id to distinguish between multiple included instances of the same page.

(Forgot that Run’s are unmarshalled in place after a special constructor is called, so there is no need for readResolve or other tricks.)
Also calling RunListener.onDeleted outside of the Run lock to avoid problems with things like ChangeLogHistoryRunListener.

Hoping nobody uses it programmatically.

Also, added @Restricted to the new one.

streams created from SocketChannel doesn't allow concurrent read/write
by different threads, which appear to be a bug in NIO.

Many users may have a configuration access to Users, so the "Your name" seems to be a bad label.
The appearance have been changed in configure.properties and configure_ru.properties.
Signed-off-by: NOleg Nenashev <o.v.nenashev@gmail.com>