Better for people to set up their own scheme if they want one, and it
avoids tiddlers potentially being in two different places (since
FileSystemPaths isn't honored during an init/savewikifolder).
Although this is automatically generated, it represents a critical part
of the content of the edition which cannot be created from the content
in the repository (it's generated from a private directory on my
computer), so at this point it is appropriate to check it in.
