- Remove shared/str.h where not used.
- Remove shared/debug.h from all files as it has been completely replaced
by shared/report.h (it will be removed later).
- Add more doxygen comments to shared/* and clients/lcdproc/*.
- Include static functions in doxygen output.
sock_printf_error(): factored out the 'huh?-stuff, added error report
log)
- use sock_printf() and sock_printf_error() if necessary (no need to
use sprintf())