Git Bundle Handling

[rmspeers]

It appears that in the bundle.py, there is at least support for the file format, and packing seems to be well supported.

I do not see a way, however, to do 2 things:

1. git pull from a bundle. When I try to give the path as the remote, an exception propagates from down in client.py's _open_repo function.

2. create a bundle (git bundle create) from a repo

Could anyone share ideas or tips?

[rmspeers]

@jelmer or anyone, do you have any suggestions? I'm not familiar with Git internals but am happy to try to add support if you have suggestions.