CodeSnip Old Code (SVN)

Fixed problems setting snippet references and tag set following changes made to TSnippet at revision 4034.

Removed unused USnippetIDs unit from project.
Changed affected units to use CS.Database.Snippets instead.

Fixed GPF bug in new TSnippets.Tags property and associated TSnippetData field that manifested itself when loading the snippets database.

Modified database loader and import code to add a single tag to each snippet. In database loader this is based on snippet's category while importers add a tag describing import source.

Renamed TCategory.Snippets property as SnippetIDs and changed its type to ISnippetIDList.
Made appropriate changes to affected code.

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

Renamed TSnippet's Units, Depends and XRef properties to RequiredModules, RequiredSnippets and XRefs respectively and modified affected code accordingly.

Renamed all fields of TSnippetReferences record and made necessary changes to using code.

Added code to remove invalid snippet IDs from a snippet's Depends and XRef properties.

In DB.USnippet this is a partial reversal of the change made in revision 3905.

Removed invalid TODO.