added email and password validations to User model
updated maximum photo upload size to 4mb
added validations to user
commented out unnecessary tests since we'll be removing the popups that appear after successful signin and signup
user validations 100% covered in user_spec
Merge pull request #47 from bobolinks-2014/ratings

finished comment-form ratings
finished image validation error output, need to css it now
Merge pull request #44 from bobolinks-2014/user_validations_and_testing

User validations and testing
Merge pull request #48 from bobolinks-2014/photo_errors

Photo errors
resized the settings for image
mobile first MVP up and running
edited the actual first mobile responsiveness of show page
basic javascript responsiveness for slick carousel
basic full screen functionality
Merge pull request #49 from bobolinks-2014/photo-uploader-size

Photo uploader size
fixed merge conflicts with the show page. Added the difficulty in words method