[releng] Inherit from latest o.e.r parent POMs.

This required fixing several Checkstyle violations. Missing
licenses have not been included yet; simply run Maven with
-Dlicense.failIfMissing=false
Merge branch 'master' of https://github.com/sewe/recommenders-jdoc into parentPoms

Conflicts:
	plugins/org.eclipse.recommenders.livedoc.cli/src/org/eclipse/recommenders/livedoc/utils/ZipUtils.java
add !licenseCheck to build.sh