Extend the whitelist and blacklist option handling to accept regexps.

[jo]

We can simply check for the presence of leading and trailing slashes, because a database name cannot start with a slash. This way we can get rid of the two additional configuration options whitelist_regexp and blacklist_regexp

[jo]

@ejeklint what do you think?

[ejeklint]

Yes, that's a good idea. :thumbsup:

[jo]

published as couch-daemon@1.4.0

[ejeklint]

AWESOME! \o/