create comment partial, migrate db, update models
Make comments on posts polymorphic

-make comments polymorphic
-make replies controller for comments that reply to other comments
-make new routes for comments and replies
Make replies#create, display comments in nested lists
fix routes formatting
add comma so git doesnt freak out if i need more params
delete line break
Display post.replies, NOT post.comments (recursion)
Do first half of justin's edits
Do second half of Justin's edits
Refactor replies controller into comments controller
Add permalinks to comments partial
Add missing </span> tag
Make migration safer, separate delegate into own section
Clean up comment partial, make smart paths
Make comment#create redirect to parent anchor
Remove extraneous path methods