Clean setup for curling
Terms through colleges (single cUrl)
Get Curriculum, also added getJsonObject method.
multi-curl and get courses.
Much better keys!

Use assigned keys instead of incrementing ones. Now cc:get will
overwrite entities with changes instead of appending new entities.
Bug fixes

Fixed bug with some entity ids, fixed bug where curl_multi_exec would
be called far to often.
Small changes

Changed course number from string to integer, lowered sleep time.
Merge branch 'multi-curl'