CodeSnip Old Code (SVN)

Performed various rename refactorings on source code to replace the use of the word "extra" with "notes" wherever "extra" appears in the context of the old snippet Extra property.

Moved and renamed ActiveText.UMain.pas to CS.ActiveText.pas and made necessary changes to code that uses the unit.

Replaced all uses of TActiveTextTextRenderer from ActiveText.UTextRenderer unit with calls to TActiveTextPlainTextRenderer.Render from CS.SourceCode.Pascal.SourceGen unit and removed the redundant unit from the project.

Removed redundant TSnippetDoc.RenderDBInfo abstract and descendant methods.

Removed UserDefined parameter from TSnippetDoc.RenderHeading and subclassed methods.
TRTFSnippetDoc changed so that headings are no longer rendered in a user-chosen colour.

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