We can't rely on the most-recent change number matching our most-recent
change number because there can be changes in svn that produce no
corresponding hg changeset.
Use the presence of the UUID file for recognising a Subversion-enabled
repository locally, and the 'subversion' capability in for recognising
them wrappers.outgoing() remotely.0
The change only applies to the ambiguous URL schemes: file, http and
https. The others - svn+ssh and svn - behave the same as previously.
For http and https, the wrapping is implemented in 'svnrepo.py': Only
when the attempt to create a httprepo instance fails, will the URL
be considered for Subversion URL.
For file, the ambiguity is treated much like the Mercurial core
distinguishes bundle and directories. In this case, a directory that
looks like a Subversion repository will *not* be considered for a
Mercurial clone.
Tthe command lines are more similar to before this refactor. The only
option added to push & pull is --stupid; others are only added to
clone. Any of these options specified to clone will be added to the
generated '.hgrc'.
Also, the -r/--rev option now works for clone & push.
