added methods to add notes to an encounter
added skeleton encounter notes page
repurpose encounter-notes as close-encounter
removed set/getNotes() from tabcat.encounter, added administrationNotes option to close()
fleshed out close-encounter form
used CSS columns
filled in form-reading logic for close-encounter
added fanciness to make comments required when "other" is chosen
hooked close-encounter into the rest of TabCAT. fixed reading of goodForResearch
yet more form required-field fanciness
Merge pull request #77 from davidmarin/take_note

Collect administration notes after encounters. Fixes #59.