Remove old comments server
Remove login and comment system CSS
First-pass comments replacement

Start replacing the comments system.  This commit removes the old system, and
adds the functionality for the new comments.  It does not add any styles, that
can happen tomorrow (hopefully).  Once I finish the styles, I will merge this
branch and deploy to production.
Add styles for the no comments view
Hide comments while loading data

If the comments are not hidden while loading, the comments for the previous
activity are shown in its place.
Style and change the layout for the new comments list
Add comments count in SHFR comments json generator
Merge the new comments system