[FIXED JENKINS-13695]

This reverts commit e2303ef4.

[FIXED JENKINS-13695]

This code was originally developed for analysis-core plugin, but I think it's useful outside it.
I'm promoting this up to core

Passive agressive messaging
Thanks

Preserve in-progress builds when reloading a job.
Because in-flight builds tend to update the state a lot, with this
change we refrain from reloading those builds from the disk.

This should be acceptable since we are primarily reloading a job, and
reloading of builds are secondary.

All top-level jobs show up in search, as opposed to just jobs in the
current view or in the primary view.

This reverts commit ebc6af72.

Conflicts:
	plugins/pom.xml

The actual meat of the change is in remoting.

I couldn't quite find one place to do this, so it's spread apart
somewhat.

The proposed fix https://github.com/buckett/jenkins/commit/eec16f1b6156aea76bd0cc6e0262538713ebffb6 has a problem in that it'd allow anything that has the given URL name as a prefix.

Fix UtilTest and replace ampersand in method encode too
Thanks !

Conflicts:
	changelog.html

Conflicts:
	changelog.html