User.pm: Collapse all methods into getUsers(1) inside isInGroup
Group.pm: Disable the cache whenever a scratchFilter or ipFilter is assigned.
Begin updating Group documentation for changes to dbQuery
User.t: better clean-up at end
Scratch.t: no newlines in test output
Session/Scratch.pm: convert to use placeholders
Ad.pm: Add missing line of POD.
Group.pm: add method to get all users in a group by karma.
User.pm: isInGroup to use getKarmaUsers.
always cleans up after itself.
Fix a bug where Operation::User::_submenu was still using form->process. Switched
to using stow instead.
If the uid is "new", links for delete and become user are not shown anymore.
Multiple IPs are separated by commas, whitespace is ignored.
In groups, that affects the ipFilter field, User::isInGroup.
In settings, that affects Settings::debugIp and Session::ErrorHandler::canShowDebug.
Fixed a bug in WebGUI::Utility::isInSubnet where Net::Subnets->check needs a scalar.
Modified t/User.t to use addresses in CIDR format.
