[FIXED JENKINS-18369] Jenkins lock metrics.xml file
[maven-release-plugin] prepare release vs-code-metrics-1.6
[maven-release-plugin] prepare for next development iteration
add ignoregeneratedcode field.
[FIXED JENKINS-20573] Add flag to set build to Unstable if failure
from this plugin
[maven-release-plugin] prepare release vs-code-metrics-1.7
[maven-release-plugin] prepare for next development iteration