CodeSnip Old Code (SVN)

* Added new CF_UNICODETEXT clipboard format variable.
* Re-implemented code that writes to clipboard. There are now three overloaded Add methods that write the clipboard. The method that adds a string has been re-implemented to handle Unicode or Ansi strings. It now calls new method that writes any data to clipboard. Final new (Unicode only) method writes a byte array to clipboard.

Merged trunk changes r401:429 into the delphi2010-port branch.

Development branch to make project compatible with Delphi 2010.