Add link to tinc addresses under tinc configuration. refs #603
Add missing prefix length to host and gateway tinc subnet.
Remove '\r' from stored node certificates. Fixes #571.
Use PKI certificate for Server APIs on mgmt_net. refs #245

Related discussion on #571 note-9.
Fix typo: overide --> override.
Reorder postupgrade operations: take gw snapshot before drop it from database.
Fix load certificate for Server API.

Use raw SQL instead of ORM because changes on database schema are
not yet available.
Merge branch 'master' into feature603
Fix get_default_gateway max recursion depth on particular context.
Fix ServerApi initial data creation. refs #245.

Create main server before ServerApi initialization, otherwise
ServerApi is not initialized for main server.
Remove ServerApiInlineForm: custom validation is no longer required.
Fix test_get_default_gateway (be sure that there isn't any server)
Fix raise PermissionDenied on delete last server instance. refs #236.
Mark if sliver set_state cames from sliver defaults.

Improve UX - refs #234 note-91.
Fix tooltips for sliver set state (#234).

Previous code didn't take into account if different sliver set state was below
the slice's.
Merge branch 'feature603'
Normalize api-detail URL (added final slash '/').
Fix naive datetime warning (use django timezone).
Skip timeseries test if db not supports date extract.
[deprecation] Rename module_name to model_name. refs #582.