CodeSnip Old Code (SVN)

Moved all change event handling code from _TDatabase into TDatabase and removed AddChangeEventHandler and RemoveChangeEventHandler from _IDatabase.
Relocated TDatabaseChangeEventKind and IDatabaseChangeEventInfo within DB.UMain unit to be visible to TDatabase.
Modified all code that called AddChangeEventHandler and RemoveChangeEventHandler from _Database object to call methods on Database object instead.

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.

Renamed TDBSnippetID in CS.Database.Types to TSnippetID and deleted TSnippetID from USnippetIDs.
Adjusted uses clauses of all code that uses TSnippetID as necessary.

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