Fix code

* Increase .travil.yml ruby version
* Fix read me configutation block
* Change multiline block to use do end
* remove extra white spaces
Merge pull request #1 from amaabca/Development

Development
Merge branch 'master' into add_client_service
Merge master into client service

* Add client sevice.
* bump gem version up.
* Change travis ruby version to 2.0.0, 2.1.0 is not supported.