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.

Removed unused unit reference.

Revised to use syntax highlighter themes to generate CSS needed for syntax highlighting.

Removed references to renamed Hiliter.UCSS unit.

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