adjusted blockquote appropriately for comments
fixed reply-comment bug where reply boxes were shown everywhere

also uncovered another bug where the child comments' depth was not
set accurately in the widget (would maybe cause incorrect coloring?)
compiler errors fixed
added code-of-conduct link and note above markdown fields
Clearing up some warnings.
Merge branch 'reply-bugfix' of github.com:mitchellwrosen/snowdrift into mitchellwrosen-reply-bugfix
Merge branch 'master' of github.com:wolftune/snowdrift into wolftune-master