Refactor: rename UPR to DCP

Change-Id: Idc9f5c4561fbf5bf011ca1dbed5ad00a64c67fa0
Reviewed-on: http://review.couchbase.org/39747
Reviewed-by: Chiyoung Seo <chiyoung@couchbase.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Fixup incorrect name for installed dcp header

Change-Id: Iaa5d0fbbecdd037c68ebdeb3d5a89e449b636e21
Reviewed-on: http://review.couchbase.org/39776
Reviewed-by: Trond Norbye <trond.norbye@gmail.com>
Tested-by: Trond Norbye <trond.norbye@gmail.com>
Merge remote-tracking branch 'membase/3.0' into merge

* membase/3.0:
  Fixup incorrect name for installed dcp header
  Refactor: rename UPR to DCP

Conflicts:
	daemon/memcached.c
	tests/testapp.c

Change-Id: I0331995e080af081f00f07960af6109a250f9200