minor fix
fix regexps
adjust to xdirname
avoid considering all repository directories as changed
check directory existence
update useful commands
use Git::Raw
convert find_siblings_and_types() to use Git::Raw
convert find_changed() to use Git::Raw. Probably a bad idea.
revert Git::Raw conversion
hopefully fix Git::Raw code
convert some `find`s to readdir();
ignore "." and ".." in readdir() result
handle readdir better
rm dead argument
use @{...->entries}
gitrawtree method
better cat_file
better create_link
use gitrawtree