Published 1.2.0

Misc features / renamed distribution folder

One bug fix to fix an import issue in the reality checks
Renamed the notebook distribution folder name
Removed restrictions on the number of cores
Clarified instructions for creating clusters

Updated instructions and back-ported features of the test framework

Misc updates to test stability

Added validation for the registration ID

Added exercise 7

Includes instructions for "submitting" the capstone project.

Update README.md

Update README.md

Left Exercise 01 out of the distribution by accident.

Misc bug fixes and clarifications