Change PrefixList.class to Zone.class

Changed the class.  Modified the junit test to catch that type
of issue, refactoring it to extract common code.

Change-Id: Ibc3d22821f103cd3954d2f2f54d4d62307dbf4c6
Issue-ID: POLICY-909
Signed-off-by: Jim Hahn <jrh3@att.com>
2 files changed