Allow "portable" operation

[davidrg]

Currently, Kermit 95 will on first run create files and directories in:

• C:\ProgramData\Kermit 95
• %APPDATA%\Kermit 95

And registry keys under:

• HKCU\Software\Kermit

Ideally it would be possible to use K95 in a portable self-contained way. K95 should:

• Not create any registry keys
• Not create or use any files in C:\ProgramData\Kermit 95
• Not create or use any files in %APPDATA%\Kermit 95

A portable distribution of K95 should probably include a different version of k95.ini which looks for k95custom.ini only \v(inidir), and perhaps reads settings normally stored in the registry from another kermit script that K95 updates as necessary.