Fix Bad configuration

Hi,

I've fixed the default configuration since I've found a few issues : 
- you tried to import the routing of an unexisting bundle in app/config/routing.yml :
```yml
MopaUpdateBundle:
    type:     rest
    resource: "@MopaRemoteUpdateBundle/Resources/config/routing.yml"
```
- all imports in routing.yml about MopaBootstrapSandboxBundle should be moved to routing_dev.yml
- same thing in config.yml => everything has to be moved to config_dev.yml

Honestly, I'm not sure to understand how it worked :)