Init Rspec
Get 'spec' and 'pry' in test environment
Switch development mode DB for rspec
Add 'query' spec
Add query interface
Speed up rendering JSON
Refactor: query interface
Add query spec test
Add basic error handling exception
Merge branch 'feature/build_rails_query_interface' into develop
Merge branch 'develop'
Add more query examples
Make query log more readable
Merge branch 'release/v0.0.10'