Random solution view tweaks - ref #1158

* Added link to related discussion
* Changed the exercise name to its capitalized form
Remove participant logic from submission
Delete unused method
Shave another method off submission
Delete unused method
Inline superfluous method on Submission
Remove method on submission
Merge pull request #1196 from ebautistabar/random_solution

Random solution view tweaks - ref #1158
Clean up assertions/refutations