Ruby mogilefs-client 3.2.0-rc1
* "list_keys" and "exist?" client commands raise errors properly
on failure.
* backend connections no longer terminate on ERR responses, only
on socket/connection errors.
* support the "updateclass" client command. This is for updating
the class of a given key and not to be confused with the
"update_class" admin command.
* "new_file" checksum usage is now documented since MogileFS 2.60
includes official support for checksums