installed cocoon. add question works. remove question still not working despite correctly adding to strong params
successfully transitioned questions and answers into an html table sytle format
added datetime strftime for rehearsals and started work on putting together index of exercise rehearsals. this still needs some thought re: how this index should be organized in a natural way between creating exercises and rehearsing them, and being able to see all of your rehearsals of a particular exercise, and editing exercises versus editing answers etc.
Merge pull request #8 from Henryvw/cocoon_add_and_remove_nested_forms

Cocoon add and remove nested forms