admin-ui: Fix typo
admin: Add "Deleted" badge in volumes

Show if a volume has been deleted using its "deleted" attribute (and not
its status).

Fix apyrgio/synnefo#174
admin: Add attached VM in volume summary

Fix apyrgio/synnefo#173
Merge branch 'feature-admin-enhancements' into feature-admin
admin: Improve loading speed of details page

The improvements are the following:

1. Do not check if <Item>Association has a qs attribute by evaluating
it, since this will actually evaluate querysets, and for potentially
large querysets we do not want this.
2. Use `prefetch_related` to get the resources along with the project
policies, thereby reducing significantly the number of queries.
3. Use a resource cache to cache the results of Resource queries, since
they amount to almost half of the queries.

With the above improvements, the queries where reduced by 40%.
Merge branch 'feature-admin-improve-speed' into feature-admin
admin: Remove extra status in volume template

Fix apyrgio/synnefo#174
admin: Fix modals in details

Due to the recent changes with the associations, the modals
functionality in the details page was broken. Restore it to its previous
state.
Merge branch 'feature-admin-fix-modals' into feature-admin
admin-ui: Improve details badge colors
admin-ui: Style deleted/limited items info

Fix apyrgio/synnefo#186
Fix apyrgio/synnefo#185
Merge branch 'feature-admin-fixes' into feature-admin
admin-ui: Minor style fixes

Fix apyrgio/synnefo#224
admin-ui: Style nav-bar fix
Merge branch 'feature-admin-fixes' into feature-admin
admin-ui: Add charts for all recourses type
Merge branch 'feature-admin-ui-demo' into feature-admin