[dev] surf diff

Hi there,

see attached a diff that cleans up the surf code a little bit:

- it introduces camel case for the enum values (to avoid confusion with macros)
- it renames enum value ALWAYS into Throughout (that avoids some mask
conflict with some other "Always" from GTK or something else)
- it removes the use of getopt
- some cosmetic fixes

Kind regards,
Anselm