Configure for heroku
Set ruby version
Update create_table_with_innodb_row_format
Update database encoding
Update ruby version
Add app.json [ci skip]
Update app.json
Update app.json [ci skip]
Update app.json [ci skip]
Update app.json [ci skip]
Update app.json [ci skip]
Update .travs.yml, README [ci skip]
Merge pull request #19 from tnantoka/heroku

Heroku