Developing a server to host a smartphone app content
You can use .net platform as an backend server.
Im building this app (using Unity3d) for a city hall and I need to split the content from the actual app since content must be easily changeable without having to update the app itself. 
I want to host the content on a server and use http get/post messages to retrieve the data. I also need to have a web editor (kinda like a CMS) so that the client can change the content himself. 
In the editor I would just have a list of "rooms", where each "room" would be one of three types (i.e. text screen, slideshow or audio). Depending on what type the room is, different parameters should be visible and editable. 
What language you suggest I write the server in? (the server that the app would contact in order to obtain the up-to-date content) Python i'm guessing here?
What would be the easiest way to build the browser editor? Javascript and django?