In addition to fitting better (brute library is the verb, creds library
is the noun), this will allow creds.lua to use creds.Account internally
where necessary (see subsequent commits)
Also change old references to string argument "OPEN" into
creds.State.VALID.
password guessing against the Membase TAP protocol. [Patrik]
o [NSE] Added the script membase-http-info that retrieves information from the
Couchbase distributed key-value pair server. [Patrik]