remove legacy django.views.generic and related code; fix some imports
Update ports tree
remove legacy code for services app, unused imports
bugfix: str.find method returns index which fails on if statement
bugfix: do not create the new disk when replacing in-place
replace in-place option
delete button should lookup for the nearest dialog widget not hardwired id
Improve handling for in-place disk replacement.
UI for detach disk, not yet fully implemented
bugfix: __unlabel_disk accepts only one argument
