internal package
Foswiki::Contrib::RCSStoreContrib This is a stub module for a new contrib. Customise this module as required. It is typically not used by the Contrib. Foswiki does not load it automatically. It is used by the Extensions Installer to detect the currently installed version of the Contrib.
Class method called from configuration bootstrap to determine if this store can be used. If it's usable, it will take precedence over the RCS based configurations.
This method "guesses" the following configuration settings
{Store}{Implementation}