Better caching, model improvements, bash scripts for starting the server.
Merge branch 'enhancement-#8'
Refactor main package name

The main package name was called "gijonurbano-backend", similar to the
application as a whole.  The package has been renamed to "application"
to better describe its purpose.
Rename views and responses

The views and responses modules had misleading names.
The "views" module has been renamed to "controller", the old "responses"
module has been renamed to "views".
Merge branch 'enhancement-#9'