[BUG] transport.local: when local path given in url form

[Alexander Belchenko]

When I run push command with local path that given in url form with 
'file://' prefix I got error:

E:\work\Python\bzr\bzr.dev>python bzr push file://d:/push/bzr.dev
bzr: ERROR: Path u'E:/work/Python/bzr/bzr.dev/file:/d:/push/bzr.dev' is 
not a child of path u'd:/push'

I think it's because LocalTransport.relpath() method does not handle 
this case (when path specified with 'file://' prefix).

--
Alexander