assign tags to tag_cloud
create vote model
assign has_many relationships with vote in comment and user
don't require comment param in comments controller
add abusive field to comment model
add mark_abusive / mark_not_abusive functions to comment model
add mark_as_not_abusive route
create vote_up method in comment model
change "score" field to "value" in vote model
create vote_up route
create vote_up action in comments controller
mark comment as abusive after receiving 3 negative votes
show abusive comments only to post author
fix comment_params in comments controller
create friendly date decorator
assign current user to post
add vote down method to comments controller
add vote down method to comment model
add upvoted_by_user? method to comment model
add vote_down route