clasnake 39bd0175b7 Pr4855 cherrypick (#5115)
* Add async support to scala client.

* Format api endpoints.

* Modify build.sbt.

* Change date format and pass StoreApis tests.

* Add StringReader and StringWriter to support string serialization/deserialization.

* update petstore samples for scala clients

* Update maven and gradle dependency. Update tests to pass compilation.
2017-04-03 15:01:43 +08:00
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