Use erlang:apply in hash_password to silence deprecation warning.
Use erlang:apply in hash_password to silence deprecation warning.

Change-Id: Id12c0442158b4da28637637b0e2e285b8a051d51
Reviewed-on: http://review.couchbase.org/35016
Tested-by: Aliaksey Artamonau <3c875bcfb3adf2a65b2ae7686ca921e6c9433147@gmail.com>
Reviewed-by: Artem Stemkovski <15a0730a27c69f62ab86f2b6c639fca202166c02@couchbase.com>

ceejatec/ns_server,ceejatec/ns_server,ceejatec/ns_server,mschoch/ns_server,ceejatec/ns_server,nimishzynga/ns_server,nimishzynga/ns_server,membase/ns_server,ceejatec/ns_server,membase/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,daverigby/ns_server,mschoch/ns_server,daverigby/ns_server,ceejatec/ns_server,nimishzynga/ns_server,mschoch/ns_server,t3rm1n4l/ns_server,daverigby/ns_server,nimishzynga/ns_server,membase/ns_server,membase/ns_server,nimishzynga/ns_server,membase/ns_server,membase/ns_server,daverigby/ns_server,mschoch/ns_server,nimishzynga/ns_server,mschoch/ns_server,t3rm1n4l/ns_server