add regexp check on repo's name
([a-z0-9_]{4,30})/([a-zA-Z0-9-_.]+)
run auplink before unmounting aufs
add aufs-tools to lxc-docker dependencies
add aufs-tools package to dev env docs page
install aufs-tools when setting up the hack vagrant box
install aufs-tools when setting up the testing vagrant box
Merge pull request #663 from dotcloud/662-fix_push_html_404-fix

* Registry: add regexp check on repo's name
Merge pull request #816 from unclejack/524-fix_aufs_links_related_warnings

524 fix aufs links related warnings
Add examples for local import.