Merge pull request #13 from synopsys-arc-oss/JENKINS_21044_fix

[FIXED JENKINS-21044] - Throttling blocks the Jenkins queue
[maven-release-plugin] prepare release throttle-concurrents-1.8.2
[maven-release-plugin] prepare for next development iteration
[JENKINS-13619] - Added configuration options for Matrix project's throttling

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>