* adds a new entry 'fncache' to '.hg/requires' for new repos
* writes new file '.hg/store/fncache'
* hash-encodes filenames with long paths (issue839)
* encodes Windows reserved filenames (issue793)
- format.usestore is a boolean option
- python wart: ("revlogv1") is a string, not a tuple
- only create a dummy changelog if we're using a store
- add a test
- This removes the "repo not found" error when cloning or init-ing a remote
repo.
- Since the remote hg will abort if the repo already exists we don't need to
validate it.
since creating a repo raises an exception if the repo already
exists, there's no need to try to create one.
add some test for repo creation when the destination exists