JUnit 4.
[FIXED JENKINS-18373] View.doConfigSubmit must rawEncode its name.
Making DiskSpaceMonitorDescriptor public since it is hard to write a disk space monitor without it.
Had some inappropriately nontransient fields.
NPE when NodeMonitor.columnCaption is null.
Possible to create a custom AbstractDiskSpaceMonitor.
Merge remote-tracking branch 'upstream/master'
[FIXED JENKINS-18368]: modified testcase asserts