Update funcitonality and styling of comments

- Move comment form below comment listing
- Add padding to each comment
- Change comment jQuery to insert new comment above comment form instead of after
- Update styling of delete button
- Remove standard form class of "button_to" that resulted in double-button effect
- Add border to botto of each comment
- Make display of comments conditional so only match participants see comments
- Sort comments in asc order instead of desc
Merge branch 'AddComments'

See commit message for Add Comments