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
This method "guesses" the following configuration settings
It must run after the DataDir and PubDir settings have been applied.
If it detects both RCS and PlainFile store files, it dies to prevent