replica: Restored legacy values of deprecated replicaManager property

When renaming the configuration properties of replica manager, the
replicaManager was marked deprecated and the allowed values changed
to true and false rather than yes and no. This patch restored the
legacy values such that yes and no can be used. The new
dcache.enable.replica property still requires the values true and
false.

The default value of the property has been changed from yes/true to
no/false, as this better reflect most dCache instances.

Target: trunk
Require-notes: yes
Require-book: yes
Acked-by: Paul Millar <paul.millar@desy.de>
Patch: http://rb.dcache.org/r/5749/