* Fixed a regression in rdairplay(1) that caused macro carts with
the 'Use Event Length for Now & Next Updates' attribute set to
fail to use the parent rdlogmanager(1) event/clock duration.
* Renamed the 'Use Event Length for Now & Next Updates' checkbox
in the 'Edit Cart' dialog in rdlibrary(1) to 'Use RDLogManager
Length for PAD Updates'.
* Updated the screenshot of the 'Edit Cart' dialog in the
Operations Guide.
* Added screenshots for the 'System Overview' chapter of the
Operations Guide.
* Added screenshots for the 'Managing the Current User with RDLogin'
chapter of the Operations Guide.
* Added screenshots for the 'Content Management with RDLibrary'
chapter of the Operations Guide.
* Added screenshots for the 'Automating Tasks with RDCatch'
chapter of the Operations Guide.
* Added screenshots for the 'Generating and Maintaining Logs with
RDLogEdit' chapter of the Operations Guide.
* Added screenshots for the 'Running Logs with RDAirPlay' chapter
of the Operations Guide.
