Made Alerts a bit nicer + one alert test

* it also touched Actions a bit.
Fixed issue where blocker div prevents navigation
Flak cannon liberally applied
Merge pull request #763 from psav/flak_cannon

Flak cannon liberally applied
Merge pull request #669 from mfalesni/snmp_form

Alerts testing
Merge pull request #762 from psav/fix_blocker

Fixed issue where blocker div prevents navigation