add score to users table
display users score in navbar
change cursor on #score to text
create unit test for user score attribute
create increase_user_score method
change flash notice to error
add username, created_at, score, and link_to submissions to users#show
filter posts if a user_id is present in the params
create index method for comments
create link to user_comments page
in create method, save comment to current_user.comments
remove :as => :commentable from has_many: comments association
render comments through _comment partial
fix indentation
render comment through partial
add link_to parent if post is not present
create search form
reorganize routes for search form
create search class method
refactor index method for search