CodeSnip Old Code (SVN)

Removed event kinds that applied to categories from TDatabaseChangeEventKind.
Modified affected IDatabaseChangeEventInfo event handlers

Modified various erroneous comments that referred to categories.

Renamed various interface, class and factory method names in UView.pas to correct the spelling of "Null" in their names.
Modified affected code accordingly.

Renamed IDatabase and Database function, along with internal TDatabase class and PvtDatabase varibale by placing underscore in front of their names. This is to flag the items as "legacy" and to avoid name clashes with new database code being developed.
Modified all code that calls Database to use _Database instead.

Recreated "parsnip" (v5 development) branch by branching trunk just after updating it with changes in v4.7.1.