Add fast-import mode.

[robbat2]

This uses the git fast-import system to create a repo much faster than calling git many times.

Signed-off-by: Robin H. Johnson [email protected]

[hoxu]

The indentation is 2 spaces, which is different from indentation used in dokuwiki2git - tabs (it's also different from PEP8 recommendation). Indentation should be consistent within the project, eg. tabs.

Otherwise this patch looks interesting and I'd love to merge it after some cleanup :)