Change user.email to user.username in user and follow_button partial
Remove turbolinks gem
Remove unused gems including paperclip, friendly_id and spring
Reorder content to increase readability
Remove extra line after end of class
Reformat params syntax to maintain style consistency
Change @user.email to @user.username so user is consistently referred to by username
Remove paginates argument
Change to_params method

username.parameterize was causing the URLs to always show up lowercase, causing errors for searches dependent on exact syntax. .paramterize was removed and the problem was solved.