pass book feature index test

book index shows all titles
require rails_helper in features
DatabaseCleaner before :all

also added HTTP_REFERER to spec/controller/books_controller
typo fix in bookcontroller: s/viewed book/reviewed book/
add failing test for deleting other's books

books_spec:
create my_book and her_book, sign in, attempt to destroy both

author_spec:
s/spec_helper/rails_helper/
pass all tests. This does not close (#12)

still need no editing, this just handles destroy
book_spec, a book I do not own:
  s/my_book/her_book/
check owner_id == current_user.id in  bookcontroller destroy
comment out spec/controllers/book_controllers destroy specs
 (we don't need them any more, according to simplecov)
add failing test for edit other's books

also passing test to edit own book
rearrange book_specs
add check current user in books_controller edit
remove link for edit/destroy unless current user

conditional links in index and show
add book.user

use it in book index and show for conditional link
test (incorrectly) in features/book
remove commented out book controller delete test
Merge branch '12-only-edit-what-you-entered' into 12-edit-or-delete-own

also fix book.user
Conflicts:
	spec/controllers/books_controller_spec.rb
make test pass. This should close (#12)

capybara was not finding the update button when someone handcrafts an
update url for someone else's book. That's because I was asking it to
find and update *link*.
Merge pull request #102 from nbirnel/12-edit-or-delete-own

12 edit or delete own