CodeSnip Old Code (SVN)

Merged trunk changes 730-765 into the new-backend branch.

* Changed compiler error dialog to be passed a snippet id rather than complete snippet reference to get details of snippet for which compile error being reported.
* Renamed several names containing "routine" to names containing "snippet".
* Modified calling code in UCompileMgr unit as a consequence.

Experimental development branch for complete rewrite of back-end code relating to database and snippets editing engines.