CodeSnip Old Code (SVN)

Refactored code that gets paths to config file and user database used in earlier versions, and corrected a couple of subtle bugs en-route.

Updated with relevant details of a CodeSnip 5 installation and revised version detection code to be able to detect v5.
Can now find v4 and v5 (user) databases even when redirected to user specified location.

Merged portable version of application into standard version. Portable version is now run via the -portable command line switch instead of a separately compiled program.

Some consequences:
* Same program may report a different serial number depending on how it is being run.
* Need to change codesnip program update web service to take a new "combined" edition and find some other means of passing info about whether CodeSnip is being used in standard or portable mode.

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