* Implemented the '--check' command in rddbmgr(8).
* Implemented show database status in rddbmgr(8).
* Implemented the '--modify' command in rddbmgr(8).
* Stubbed out rddbmgr(8). * Implemented the '--create' command in rddbmgr(8). * Fixed a bug in 'RDStation::create()' that generated corrupt records in the 'AUDIO_INPUT' and 'AUDIO_OUTPUTS' tables when creating a new host with no exemplar.