Interfaces were handled globally before this commit. Now
alerts can be configured per-interface. So for example alerts
for the same host 193.168.2.1 can be handled differently on multiple interfaces.
Old alerts configured should be automatically migrated thanks to script startup.lua
This commits also paves the way to introduce stateful alerts in the professional version
Multiple commits have been squashed here:
- Adds alert configuration page for local networks
- Cleans unused branch
- Adds alert settings for local networks
- Implements alerts for networks
Added various fixes to networks view including the ability to visualize per-network graphs
Local hosts dumps (before purging) are now handled properly again.
