create `ckan.rake` to hold code for getting data to CKAN
[#70844570] work to refactor and get data into CKAN

- restclient gem
- new config variables
- rake task to create resource
[#70844570] CKAN create resource and upsert working

EXCEPT encoding
[#70844570] AQE sites working
[#70844570] data upsert daily works
[#70844570] AQS hourly upsert working
fix specs so they run
[#70844570] move `fetch_all_eggs` and other related functions to helpers in support of rake task
[#70844570] work toward AQE egg site ingestion
[#70844570] AQE data capture
fix
[#70844570] update readme for new rake tasks
update docs and add some sleeping for Xively due to rate limits
[#70844570] use CKAN_HOST env variable instead of hardcoded url
[#70844570] documentation about crontab
fix formatting
[#71596672] get AQS/AQE sites from CKAN
[#71596672] site uses CKAN for AQS pages
fix eggs
fix time and order issue