Add a view for error status codes

We need add a templates for error status codes because in a widget maybe looks ugly the default error page.

I propose implement views for principal error status codes and analyze other possible error codes:

• 401 - Unauthorized to read resource
• 404 - Resource not found
• 500 - Internal server error

In the results of the API call we don't get the dictionary with the path to the image in the image_url field.

"organization": {
"description": "Cartográfica es una empresa que se especializa en el análisis geoespacial, así como en la generación de mapas dinámicos e infografías.",
"created": "2014-08-14T14:09:49.234689",
"title": "Cartográfica",
"name": "cartografica",
"revision_timestamp": "2014-08-14T18:10:10.762406",
"is_organization": true,
"state": "active",
"image_url": "20140814-180949.158037cartografica.png",
"revision_id": "e694ebb5-4a00-499f-a285-5b5c870e7d3a",
"type": "organization",
"id": "d2581ddd-7dba-413a-b678-a2ff15ca8f0b",
"approval_status": "approved"
},
The "image_url" in the dictionary doesn't go through the dictization that takes place in group dictize:
https://github.com/ckan/ckan/blob/b0ca98a14fce1d4f7f9578723cd9cd3150da5335/ckan/lib/dictization/model_dictize.py#L429-438

It just returns the first organization:
https://github.com/ckan/ckan/blob/b0ca98a14fce1d4f7f9578723cd9cd3150da5335/ckan/lib/dictization/model_dictize.py#L249-259

Español

En los resultados de la llamada a la API no regresa de manera correcta el diccionario con el path a la imagen.

La imagen que regresa la llamada de package no pasa por el preprocesamiento de la URL de la imagen:
https://github.com/ckan/ckan/blob/b0ca98a14fce1d4f7f9578723cd9cd3150da5335/ckan/lib/dictization/model_dictize.py#L429-438

Sino que regresa directamente el diccionario de la organización si preformatear la url de la imagen.
https://github.com/ckan/ckan/blob/b0ca98a14fce1d4f7f9578723cd9cd3150da5335/ckan/lib/dictization/model_dictize.py#L249-259

"organization": {
"description": "Cartográfica es una empresa que se especializa en el análisis geoespacial, así como en la generación de mapas dinámicos e infografías.",
"created": "2014-08-14T14:09:49.234689",
"title": "Cartográfica",
"name": "cartografica",
"revision_timestamp": "2014-08-14T18:10:10.762406",
"is_organization": true,
"state": "active",
"image_url": "20140814-180949.158037cartografica.png",
"revision_id": "e694ebb5-4a00-499f-a285-5b5c870e7d3a",
"type": "organization",
"id": "d2581ddd-7dba-413a-b678-a2ff15ca8f0b",
"approval_status": "approved"
},

There is a problem visualising the widget of harvested objects

500 Internal Server Error

The server has either erred or is incapable of performing the requested operation.

There was an internal error indicadores-de-pobreza-pobreza-por-ingresos-rezago-social-y-gini-2010-municipal

http://datamx.io/dataset/edit/indicadores-de-pobreza-pobreza-por-ingresos-rezago-social-y-gini-2010-municipal

I think that the wiki is better place for documentation translation and only the documentation in english will be in the root project directory.

We want to add support to track if our widgets are being used and how many impressions are generating.

UI would be better if we put different information for administrator users & data users.