* Let fetch run recursively on submodules (in progress)
* Let checkout, checkout-index, read-tree & reset work recursively on submodules (in progress)
+* Teach grep the --recursive option (in progress thanks to Chris Packham)
* Add means to specify which submodules shall be populated on clone
* Check before a push in the superproject that all submodules HEADs are pushed
* Showing that a submodule has a HEAD not on any branch in "git status"