Started the implementation of the db_communication_AWSDB.
Merge branch 'master' of https://github.com/mpelko/BookCommunityQuestions
Changed the get_book_id and get_all_QAs to update_ functions to reflect
the fact that they are generally ansynchronous. I changed the
BookCommunityAnswers.js to implement those new calls.
I also implemented the db_communication_AWSDB for the local server.
Merge branch 'master' of https://github.com/mpelko/BookCommunityQuestions