v0.1.0

Merged pull requests:

• Refactor etc ... #7 (hirocaster)
• Refactor class repository #6 (hirocaster)
• Add codeclimate-test-reporter #5 (hirocaster)
• Change coding style #4 (hirocaster)
• Setup coveralls #3 (hirocaster)
• Setup travis ci #2 (hirocaster)
• Change namespace ActiveRecordSharding to ActiveRecord::Sharding #1 (hirocaster)