HADOOP-9247. Parametrize Clover generateXxx properties to make them re-definable via -D in mvn calls. Contributed by Ivan A. Veselovsky.

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1438698 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'origin/trunk' into trunk-gd

Conflicts:
	pom.xml
Merge branch 'trunk-gd' of github.com:griddynamics/yhadoop-common into fb-HADOOP-9170-trunk-gd