Merge branch 'develop' into 'master'

.gitignore

README.md

requirments.txt

sql/.gitignore

sql/create-dump.sql

src/.env.example

src/__init__.py

src/alembic.ini.example

src/database/Connector.py

src/database/README

src/database/__init__.py

src/database/connectors/BookConnector.py

src/database/connectors/__init__.py

src/database/env.py

src/database/models/Book.py

src/database/models/Model.py

src/database/models/__init__.py

src/database/script.py.mako

src/database/versions/3217c19ef3a6_create_books_table.py

src/items/BookItem.py