Uncommented  create course SDK call and also changes to params based on changes in the model layer
Added unit tests for controller
Revert "Uncommented  create course SDK call and also changes to params based on changes in the model layer"

This reverts commit 329604b158814fab7b40543219f5a2183c6a40f9.
Uncommented create course SDK call and also changes to params based on changes in the model layer
fixed some typo
Removed hardcoded course_instance_id and instead letting it be passed in  via the url
Merge pull request #15 from Harvard-University-iCommons/feature/test_controller_create_canavs_course

Feature/test controller create canavs course