NIFI-9986 Upgraded commons-configuration2 to 2.7 for Accumulo
NIFI-9986 Upgraded commons-configuration2 to 2.7 for Accumulo

Signed-off-by: Pierre Villard <pierre.villard.fr@gmail.com>

This closes #6014.

jfrazee/nifi,pvillard31/nifi,jfrazee/nifi,pvillard31/nifi,jfrazee/nifi,jfrazee/nifi,pvillard31/nifi,jfrazee/nifi,pvillard31/nifi,pvillard31/nifi,pvillard31/nifi,pvillard31/nifi,jfrazee/nifi,jfrazee/nifi,pvillard31/nifi,jfrazee/nifi