Started refactoring everything to 2013 procedure draft
Formatting and headers
steps method now returns list of tuples. Id is a string, not an Int
Implemented conditional branching in TestStep trait
progress through section 5522
progress through 5523
Another section
another section
through section 5526
refactored procedure structure
Added section 5531
Section 553 requires prerequisites, even though it doesn't explicitly say so
through 5533
through 5534
through section 5535
finished with 2012 link layer
Finished with link layer
Optimized imports
Added last link layer procedure
Tightened up transport reader exceptions to handle requirements in Section6