Merge pull request #85 from ehmatthes/ongoing_development

Fixed broken anchor links on /guidelines.
Merge pull request #88 from ehmatthes/conversations

Conversations
Added 'Features' page, to describe new features.
Added title to conversations page.
Better visual separation between individual conversations.
Added link to share feedback.
Fixed bug in calculating comment ranking_points; points were not being saved.
Outlined approach to ordering conversations by most recent reply in each conversation.
Pulls out each conversation individually.
Load test generates random submission_time for each comment, reply.
Factored out submission_time calculation.
Conversations are ordered by most recent reply.
Merge branch 'master' into conversations
Cleaned up diagnostics.
Revised features page to take out reference to re-ordering conversations.