Merge pull request #4 from gitlaura/create-web-main-and-refactor

Create Web & Terminal Main and refactor
add gemfile
add rack-test gem
refactor directories
rename main_game to game
add sinatra tests
refactor guess checker
refactor guess checker and code list
mend
refactor and use sessions
add command_line_human_player
remove instance variables in sinatra app
update sinatra app rspec
add config.ru
update gemfile