Add default local() and cancopy() methods to repository base class

Add default local() and cancopy() methods to repository base class

--- a/mercurial/repo.py	Fri Mar 07 16:19:46 2008 +0100
+++ b/mercurial/repo.py	Sat Mar 15 15:23:20 2008 -0400
@@ -34,3 +34,10 @@
             raise NoCapability(_('cannot %s; remote repository does not '
                                  'support the %r capability') %
                                (purpose, name))
+
+    def local(self):
+        return False
+
+    def cancopy(self):
+        return self.local()
+