[HAL-454] Add support for adding a periodic-size-rotating-file handler.
show hostname in server picker
improve server selection usability: clearer affordance
wip
wip
checkpoint: adapter and store init works
wip
checkoint: server config add/remove
update server and create copy moved to ServerStore as well
rip out previous state management using DomainEntityManager
checkpoint: fix server picker
fix host picker selection
clear server picker display when no server is selected
upon add/remove servers synchronise the model again
introduce no-server place
pimp up NoServerView
keep hosts and active servers synchronised
checkpoint: provide dialog for missing or invalid server selection when entering the runtime category
wip
checkpoint: move selected server to host store. only display active instances in server picker