(cherry picked from commit 6cb93e67)

This reverts commit af1a53d9.

Revert "[JENKINS-32190] Make UsageStatistics#isDue check Jenkins init level before generating stats."

This reverts commit d8a13ac0.

I noticed a strange drop in usage statistics from the mid Jan 2016,
which corresponds to the time this change was released in the wild,
and further drop when LTS 1.642.2 is released with this change at
the end of Feb.

I spent some time trying to determine how this might cause instances
to stop sending data, but I couldn't come up with any. I left those
notes in JENKINS-32190. There was some strange behaviours, but none
explains what this is.

So I'd like to back out this change and see if that makes any impact
on the stats collection. If it backs up, then we know empirically
this change is to blame, so that would justify spending further
effort or come up with a fix from a different angle.

(cherry picked from commit b2013edb)

(cherry picked from commit 1a2d8227)

[FIXED JENKINS-26580][FIXED JENKINS-28289] Activate JNLP3 support
(cherry picked from commit 6d3e0543)

(cherry picked from commit 1ed395aa)

(cherry picked from commit 344e917c)

(cherry picked from commit 5423f695)

(cherry picked from commit 7fb1ac9d)

[JENKINS-28790] solved the issue masked parameters not masked in windows system. toWindowsCommand joins all args in one, missing masked.

(cherry picked from commit b9a72bcd)

(cherry picked from commit d2b1f15f)

(cherry picked from commit a5febd76)

(cherry picked from commit abf9fd36)

Integrate newer version of test-harness

Removes mention of http.proxyHost property

The root problem was missing <scope>test</scope> in domain-discovery.

[JENKINS-33068] AsyncPeriodicWork/AsyncAperiodicWork log files rotation

Fix proxy server name documentation

Pull in new version of Stapler

Adding a module to allow organizations to track usage of Jenkins within their domain

... that has various @WebMethod related improvements.