* [JENKINS-37874] - Log SEVERE messages if Jenkins does not reach COMPLETED stage during startup or reload

* [JENKINS-37874] - Add Administrative monitor for the COMPLETED state

* [JENKINS-37874] - Polish log messages

* make the icon of the script console configurable

* we don't need an extra variable

* use <j:choose>

* remove restriction to be able to ovverride the method in subclasses

* since needs to be adjusted

Add newline after the text in userContent/readme.txt

Hard to see anything with Gray background and White Text.
Style is in line with Selects and other form inputs.

* [JENKINS-36748] Add a test case and not process null specs

* [JENKINS-36748] Correct license and add a minor comment

* [JENKINS-36748] Add a Waning logger when spec is null

[FIXED JENKINS-36537] Allow the use of custom json signature validator for metadata signature check (#2442)

* JENKINS-33374 - correct restart behavior during setup wizard

* Add tests

* One more test

* Test Windows junctions before Java 7 symlink

Apparently Java 7 (and later) do not count Windows junctions as
symlinks.  When you drill down into the BasicFileAttributes structure,
reparse points are only counted under isOther.  So, since we already
have code that properly detects Windows Junctions, let's use that first
and then fallback to the Java 7 code.

* Add comment for change & link bug.

* Add test case

* Switch to Functions.isWindows().

* Use non-deprecated APIs for tmp file/dir mgmt

* Add better debugging.

* Allow spaces in junction name & dir name.

To do that, it was easier to use ProcessBuilder vs building up the correct
string in code to send to cmd.exe.

Also, I'll note that according to http://ss64.com/nt/syntax-internal.html,
mklink is in internal cmd.exe command.  So, it must be invoked through
"cmd.exe /c" for it to work.

* Remove comment mentioning bug number.

* Remove debugging output, per Baptiste's request

* Add newline at end of file.

* Make sure that the junction was removed.

* Use assertEquals to show retcode of Process.waitFor.

* Fix compilation errors by importing functions

[FIXED JENKINS-33549] Specify on the logger the job which cannot create a new build

[FIXED JENKINS-37561, CID-1205051] - Prevent resource leak in AntClassLoader#findClassInComponents() (#2517)

It has been originally reported by Coverity in https://scan5.coverity.com/reports.htm#v36021/p10292/fileInstanceId=97573616&defectInstanceId=28155759&mergedDefectId=1205051. It happens on Exceptional paths only, but actually I see 31 runaway handlers on my jenkins-2.18 instance (maybe happens due to plugin dynamic load failure)

The issue happens, because finally block is misplaced. It handles only the last stream in this cycle

* [JENKINS-37332] - Improve diagnostics of non-closed streams during reading of the manifests in PluginManager

* [JENKINS-37332] - Leakless processing of JarUrlConnection during Manifest parsing

* [JENKINS-37332] - Also implement leak-safe method for retrieving file modification date

* [JENKINS-37332] - Add spotcheck methods for manifest file access + Javadoc

* [JENKINS-37332] - Also test multi-line and empty attributes in the test

Provide a sensible default implementation of configure.