Migrate realtimebus.tis.bz.it

[bertolla]

related idm-suedtirol/geobank#17

• [x] reduce TTL of realtimebus.tis.bz.it
• [x] switch dns entry
• [x] check if everything works correctly
• [x] point bus.meran.eu to new ip

[bertolla]

reducing TTL is not working, IT-Department told me we have to wait until Stefano G. comes back 23/08

[bertolla]

@idm-suedtirol/ict-automation Check if all sites dependent of realtimebus point to the ip in ireland and are still working correctly 34.253.90.105

[rcavaliere]

Checked bus.bz.it, mobility.meran.eu (in all declinations), everything looks OK!