Naming of services

[maede97]

We should rename some services (e.g. webinterface & python_program)

[wp99cp]

I would propose the following names for the services:

• frontend instead of webinterface
• backend instead of python_program
• routing_engine instead of route_engine
• mapfish_print_server instead of pdf_map_export
• docs for docs
• swiss_TLM_api for swiss_TLM_api

[maede97]

Sounds good!

[wp99cp]

We should also rethink the names of the runtime environments...

Maybe something like local-dev instead of live?

See comment in #121.