v0.1.0

feat(app): fix npmignore file
docs(readme): add how-to-use to README.md (#7)
feat(app): add validation for required AUTH_CLIENT_SECRET env var (#9)
feat(app): add default values to environment variables (#8)
fix(packages): update mongoose to v5.0.1 (#6)
refactor(sync): refactor to better debugging (#4)
feat(app): update node engine to v8.9 (#5)
fix(app): fix eslint config to support async/await (#3)
fix(app): fix log when mongoose is connected (#2)
feat(model): fix Address and dwellings on SurveyAddress model (#1)