[notifications] Use notification subject and message.
[notifications] rename {upgrade_ --> restore}_notification
[notifications] bugfix and rename group roles (#414)
[firmware] Disable broken sort_by state on admin build list.
[installation] Fix postupgrade firmware config (#264)
[notifications] Disallow add notifications manually.
[notifications] warn node admins about nodes in SAFE state (#177)
Merge branch 'feature177' (#177)
[firmware] Allow user delete build if task hangs.
[slices] Warn the user if slice cannot be renewed (#445)
Remove legacy code on controller utils (#453)
[api] Refactor PropertyField serializer.
Remove unused code: UnprocessableEntity (#452)
[nodes] Create ServerProperties.
Include specific USB installer instructions (#365)
Put sysupgrade first, describe better the available node addresses (#365).
Merge branch 'feature365' (#365)
[state] remove legacy merge_nodata util (#452)
[api] Remove unused JSONPointerFilterBackend (#452)
[firmware] Allow download outdated firmware builds (#477)