[feladat @ 224] The is_valid_soa function now ignores multiple spaces inbetween the fields and replaces them with a single space upon updating the record in the database (instead of returning an error). If user provided 8 fields or more, 8th and further fields are ignored. This closes ticket:24.

(^|/)\.svn($|/)
(^|/)\.hg($|/)
(^|/)\.hgtags($|/)