CodeSnip Old Code (SVN)

Removed unused unit references.

* Extracted code that deals with snippets and snippet lists from USnippets into new DB.USnippet unit.
* Modified affected code accordingly.

Refactored: Renamed TRTFRoutineDoc as TRTFSnippetDoc.

Renamed units:
* UEditRoutineAction as UEditSnippetAction
* URoutineAction as USnippetAction
* URoutineCreditsParser as USnippetCreditsParser
* URoutineDoc as USnippetDoc
* URoutineExtraHelper as USnippetExtraHelper
* URoutineHTML as USnippetHTML
* URTFRoutineDoc as URTFSnippetDoc
* UTextRoutineDoc as UTextSnippetDoc
Modified units that use the renamed units accordingly.

Refactoring: Renamed TRoutine, TRoutineEx and TTempRoutine to TSnippet, TSnippetEx and TTempSnippet.

Changed TRoutineDoc and descendant to generate documents as TEncodedData instead of writing to stream. Modified using units to accommodate change.

* Renamed TRoutinePrintDocument as TSnippetPrintDocument and renamed various fields and parameters similarly.
* Updated using UPrintMgr unit accordingly.

Updated print engine, print manager and unit containing print documents to use TRTF to contain documents instead of TStream.

Included a temporary fix in TRoutinePrintDocument to work with streams still produced by TRTFRoutineDoc.

Development branch for CodeSnip release 4.

Initial source is a copy of v3.8.4 (r1075).