add reviews association and attributes #24
spec, partials and views for embedded book review #24
adds redirect to login for new create edit update destroy #24
add redirect to new_user_session; review_attributes whitelist; specs with devise helpers #24
devise login macro, specs for adding review with new book [passing]; review fields include current_user.id;, correct syntax for embedded review form on new book; reject block for empty embedded review; remove review_params until needed #24
devise login macros #24
add rating with book works in browser #24
comment out test data in controller finishes #24