* Added an 'RDAIRPLAY.LOGO_PATH' field to the database.
* Incremented the database version to 355.
* Added 'RDAirPlayConf::logoPath()' and
'RDAirPlayConf::setLogoPath()' methods.
* Added a 'Logo Image' control to the 'Configure RDAirPlay' dialog
in rdadmin(1).
Signed-off-by: Fred Gleason <fredg@paravelsystems.com>