update migrations and seed file to add vote_count field for Comment model
add vote_count field to Comment model
change logic to account for invalid logins
update seeds with more users
refactor voting on photos before moving on to voting on comments
users can vote on photos and on comments
refactor user_voting on comments
remove development.log
Merge pull request #21 from alanflorendo/user_votes_on_comments_2

User votes on comments 2