Added configuration file for travis.ci
Added configuration file for travis.ci

tatamiya3/redpen,redpen-cc/redpen,gerryhocks/redpen,jmoriya/redpen,redpen-cc/redpen,kenhys/redpen,johtani/redpen,recruit-tech/redpen,johtani/redpen,redpen-cc/redpen,recruit-tech/redpen,gerryhocks/redpen,johtani/redpen,jmoriya/redpen,gerryhocks/redpen,recruit-tech/redpen,recruit-tech/redpen,kenhys/redpen,gerryhocks/redpen,tatamiya3/redpen,kenhys/redpen,redpen-cc/redpen,tatamiya3/redpen,redpen-cc/redpen,tatamiya3/redpen,kenhys/redpen,jmoriya/redpen