Start implementation of stat, ls, get_file & get_props
Start implementation of stat, ls, get_file & get_props

These functions are basically working.  Though get_props currently
only supports the Subversion internal properties as there is currently
no mechanism for getting/setting properties in the git repository.

This only leaves log and rev_proplist completely unimplemented of the
functions that have been implemented in the Subversion backend.

slonopotamus/git_svn_server