Read map configuration from server backend
Update configuration json read from file
Merge branch 'master' of https://github.com/finnishtransportagency/digiroad2 into move_map_config_to_db
Map configuration is read from backend server.

User specific configuration from db can override values from shared config file.
Add missing config
Merge pull request #25 from finnishtransportagency/move_map_config_to_db

Move map config to db