* 'next':
Change server_mode=='dumb' to just a dumb_server_mode bool.
Teach bup about URLs and non-ssh remotes
Don't generate midx files in dumb server mode
Add optional dumb-server mode
git.CatPipe: set a buffer size on the subprocess to increase performance.
Improve test pass condition
Adds examples for strip, strip-prefix and graft to bup save's documentation
Adds --graft option to bup save.