Fix operation history DB properties for Junits

Fix operation history DB properties for Junits

Removed operation_history.properties / operations-history.properties.
Changed the properties in persistence.xml
so that it uses the correct values. Previously junit would never write
to db because the "guard.disabled" property was not set. Set this property.
Additionally the operationshistory10 table was trying to be created even
though it exists. These values work in junit code. Not tested on
rackspace yet.

Issue-ID: POLICY-345
Change-Id: Id755b3152ae6ac4991ea9c314154592ea0105070
Signed-off-by: Temoc Rodriguez <cr056n@att.com>