CodeSnip Old Code (SVN)

Renamed UActiveText, UActiveTextHTML, UActiveTextRTF & UActiveTextValidator units into ActiveText namespace as UMain, UHTMLRenderer, URTFRenderer and UValidator respectively.
Updated all using units as necessary.

Updated to support user database file format v6: now reads and writes snippets' description properties using REML.

Changed TSnippet.Description property from string to IActiveText.
Made minimal changes to other calling code to work with new property type. Most of these take a simplistic approach and / or don't work correctly and need urgent attention.

This commit only seeks to have code compiling correctly after change.

Standardised svn:mime-type properties to "text/pascal" and svn:eol-style to "native"

Reintegrated v4-dev branch into trunk.
Trunk now contains v4 development tree