Huge cleanup!
* Changed http-lib: Just using a lightweight routing lib now, not a fully featured web-devkit, like martini
* Requests are now handled correctly and are routed to the correct routine with the smart httprouter
* Database connects once at program start and checks connection every request
* Responses are wrapped into a json object with meta information (even errors)
* Still TODO: Remove old lib and insert new lib-deps for heroku