Introduce ModifiableViewGroup
[FIXED JENKINS-20630]

The size is in wchar_t, not in bytes
[FIXED JENKINS-20800] HTML metacharacters not escaped in log messages.
Add ability for SCMPollListener subclasses to add UI elements
Merge branch 'master' into scmpolllistener
remove section, it should go into the config page of each listener.
Fix javadoc warnings in Run.java

ProcessTree was referenced without being imported.  Added the import.

ArtifactManager.load() method was referenced but doesn't exist.
Merge pull request #1037 from MarkEWaite/javadoc-fixes-k

Fix javadoc warnings in Run.java
[maven-release-plugin] prepare release jenkins-1.542
[maven-release-plugin] prepare for next development iteration
updated changelog for release
updated changelog as a part of the release
merged back the RC branch
creating an RC branch
the trunk is toward 1.544-SNAPSHOT
[FIXED JENKINS-19446]

Defer the notification to avoid deadlock.
[JENKINS-7776] Show decimals when disk space monitored as less than 1 GB.

The logic relied on the monitor being triggered to show more decimals.
The monitor threshold can be set to something other than 1 GB, and therefore didn't always work as intended.
[FIXED JENKINS-9120] RingBufferLogHandler has int that needs to be reset.
[JENKINS-9120] Add test
Noting #1028