tests: renamed datastore fixture to rethinkdb
server: updated get_ebook_url to use load_book; split in half for testing
tests: get_ebook_url testing
server: changed EBOOK_FORMATS
tests: added truncate rethinkdb fixture; set rethinkdb setup/teardown to session scope
salt: amazon product advertising API config
server: refactored create_version to separate out create_format
salt: supervisor config for multiple workers mapped to specific celery queues
salt: celerybeat config for supervisor
salt: multiple celery workers in tmux-powerline segment refs mafrosis/salt-formulae@c512d1a
salt: set timezone for celery
server: user_id not used in store_ebook
server: moved utils module out of models dir
tests: datastore module; test for find_formats_by_version
server: ebook conversion search interface
server: refactored Flask setup into factory module
server: refactored celery creation into factory; use app_context in tasks
server: nightly conversion of formats
server: fixed BROKER_URL var refs 5ed21d00