Upgrade hosttree
Add GraphLib Model with fixtures; Add Foreign key in User
Add ModelForm and docs
Remove useless and improve host.
Improve docs and add user's  graph in header
Update settings local
Add management command add-user
Add commands del/add storage
Make storage management commands and test for it.
Make mock storage 1st version
Improve mock storage and create del-user commansd
Make list and add form for users and group
Make User and Group GET
Make update for group and user
Improve list, MEDIA, Form
Make first use of dygraph