changelog entry for JENKINS-17858

[FIXED JENKINS-17858] allow <f:dropdownDescriptorSelector> to be defaulting to an instance

changelog entry for JENKINS-17723

FIXES JENKINS-17723 - Default maven settings
Good change !

[FIXED JENKINS-17478] Add extension point to rewrite JUnit test names

If an optional component cannot be loaded, print a polite one-line message, not a big scary stack trace.
(To reproduce: BuildNowTextPropertyTest from cloudbees-template warns about FolderProxyGroupContainer.)

This adds an extension point, TestNameTransformer, which is called to transform JUnit test case names.
This is useful for JVM languages like scala which are more flexible than java with identifier naming.
Scala, for example, allows you to write test names between back ticks, and then encodes the name using valid java identifiers.
This extension point would allow a plugin to transform those names back in to readable names when they are displayed on the test result page.

https://jenkins.ci.cloudbees.com/job/core/job/jenkins_main_trunk/850/testReport/jenkins.security/RekeySecretAdminMonitorTest/testBasicWorkflow/
com.gargoylesoftware.htmlunit.FailingHttpStatusCodeException: 400 Bad Request for http://localhost:60027//administrativeMonitor/jenkins.security.RekeySecretAdminMonitor/scan
	at com.gargoylesoftware.htmlunit.WebClient.throwFailingHttpStatusCodeExceptionIfNecessary(WebClient.java:549)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:333)
	at com.gargoylesoftware.htmlunit.WebClient.getPage(WebClient.java:357)
	at com.gargoylesoftware.htmlunit.html.HtmlForm.submit(HtmlForm.java:196)
	at org.jvnet.hudson.test.HudsonTestCase.submit(HudsonTestCase.java:1178)
	at jenkins.security.RekeySecretAdminMonitorTest.testBasicWorkflow(RekeySecretAdminMonitorTest.java:112)
java.lang.Exception: Invalid request submission
	at org.kohsuke.stapler.HttpResponses.error(HttpResponses.java:79)
	at jenkins.security.RekeySecretAdminMonitor.doScan(RekeySecretAdminMonitor.java:117)

[FIXED JENKINS-17508] Artifacts not being deleted by LogRotator

[FIXED JENKINS-17681] Do not try to call resolveSymlink on a nonexistent link as you will just get an IOException, breaking peephole permalinks in some Windows environments.

[JENKINS-17681] Set up a test which passes on Unix but fails on Windows when symlinks are enabled on the platform but disabled for the current user.

(cherry picked from commit 4f0200a0)

[FIXED SECURITY-69] Require POST to redeploy artifacts.(cherry picked from commit 3e56c3fc)

[SECURITY-63] Check RUN_SCRIPTS for /eval.(cherry picked from commit 3d03990a)

[SECURITY-63] Require POST for running Groovy scripts.(cherry picked from commit 3bbb65df)

[FIXED SECURITY-67] Forbid CSS links in markup to be on the safe side.(cherry picked from commit 1e19eb3e)

No need to call isLoggable if you are only calling simply getters and relying on toString later.

[FIXED JENKINS-17775] Find (model) parent POMs properly during fingerprint recording at end of build.

TransferResource.getRepositoryUrl is documented to end in a slash if known, so we should not add one.
Parsing POMs
Downloaded artifact http://repo.jenkins-ci.org/public//org/jenkins-ci/plugins/plugin/1.456/plugin-1.456.pom
Downloaded artifact http://repo.jenkins-ci.org/public//org/jenkins-ci/jenkins/1.26/jenkins-1.26.pom

[JENKINS-17775] If MavenProject.getParent throws ISE during fingerprinting, report it but at least proceed.
Proper fix is to ensure that the model resolution uses the same environment as the actual build,
or is otherwise more lenient about finding the parent (e.g. enables plugin resolution).