Merge pull request #1934 from xhh/ruby-binary

[Ruby] Support "binary" format for body parameter and response

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/RubyClientCodegen.java

@@ -90,6 +90,7 @@ public class RubyClientCodegen extends DefaultCodegen implements CodegenConfig {
         typeMapping.put("map", "Hash");
         typeMapping.put("object", "Object");
         typeMapping.put("file", "File");
+        typeMapping.put("binary", "String");
 
         // remove modelPackage and apiPackage added by default
         Iterator<CliOption> itr = cliOptions.iterator();