[bp] MB-4802 Parse versions of the 2.0.0dp4r form.
[bp] MB-4802 Parse versions of the 2.0.0dp4r form.

Originally reviewed on http://review.couchbase.org/13246

Change-Id: I1e756c4817205a099f47c1c78e2a21e02cbf2438
Reviewed-on: http://review.couchbase.org/13548
Reviewed-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>

membase/ns_server,daverigby/ns_server,mschoch/ns_server,pavel-blagodov/ns_server,vzasade/ns_server,ceejatec/ns_server,membase/ns_server,mschoch/ns_server,nimishzynga/ns_server,ceejatec/ns_server,ceejatec/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,membase/ns_server,nimishzynga/ns_server,membase/ns_server,t3rm1n4l/ns_server,mschoch/ns_server,mschoch/ns_server,mschoch/ns_server,daverigby/ns_server,pavel-blagodov/ns_server,vzasade/ns_server,membase/ns_server,nimishzynga/ns_server,pavel-blagodov/ns_server,t3rm1n4l/ns_server,nimishzynga/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,daverigby/ns_server,ceejatec/ns_server,vzasade/ns_server,pavel-blagodov/ns_server,membase/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,ceejatec/ns_server,daverigby/ns_server,ceejatec/ns_server,vzasade/ns_server,nimishzynga/ns_server