----------------
* 1 - Add raven + Try catch the worker to catch all exception. Read SENTRY_DSN
from the settings and keep working without raven installed
* 1 - Setup raven-python sentry client for insight_api and insight worker
* Add CROP_SIZE to settings
* 10 - Crop to the value of the crop parameter default to
* Add documentation
* Add multi queue management
* Add code coloration in API documentation
* 8 return the length of the queue; 2 Call Redis in ASYNC mode; 7 GET /
without params display the name and the version
* Update README.rst
* Link to insight-installer.