FreeNAS Code

some more unused variables

remove tons of unused imports and unused variables

PEP8 compliant; remove legacy unused code; bugfixes
Special thanks to Chyssler for pointing them out

remove all @login_required decorators as complement of r5932

use a middleware to set login_required as a default behavior

change freeadmin to use a custom edit/add template if available;
use blocks in generic edit for extra buttons

remove legacy django.views.generic and related code;
fix some imports

Giant rollup commit in preperation for 8.0-RC4

Roll up commit from ix repo

Merge with internal repo, this will be RC1