[FIXED JENKINS-20630]

The size is in wchar_t, not in bytes
[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
Fixed JENKINS-20853 Unmatched brace in indonesian translation
Merge pull request #1040 from thomedw/JENKINS-20853

Fixed JENKINS-20853 Unmatched brace in indonesian translation
fixed invalid link for JENKINS-20630
[JENKINS-7776] Show human readable units when Monitored space is low.

Revert the logic in DiskSpaceMonitor to be correct again.
Use Functions.humanReadableByteSize() to show useful values in Monitors.
[FIXED JENKINS-7776] Merge pull request #1039 from ChrisA89/moreHelpfulDiskSpaceMonitor
Noting #1039
Do not attempt to parse blank responses from cancelled XHR POST requests

An XHR POST request may be cancelled by navigating away from the page while the timeline is loading.  This causes alert spam on Chrome and Safari.