updated parser version and required porperty from composed model

Author: HugoMario

modules/swagger-codegen/src/main/java/io/swagger/codegen/DefaultCodegen.java

@@ -293,7 +293,7 @@ public Map<String, Object> postProcessModelsEnum(Map<String, Object> objs) {
     }
 
     /**
-     * Returns the common prefix of variables for enum naming if 
+     * Returns the common prefix of variables for enum naming if
      * two or more variables are present
      *
      * @param vars List of variable names
@@ -1500,6 +1500,10 @@ public CodegenModel fromModel(String name, Model model, Map<String, Model> allDe
                 properties.putAll(model.getProperties());
             }
 
+            if (composed.getRequired() != null) {
+                required.addAll(composed.getRequired());
+            }
+
             // child model (properties owned by the model itself)
             Model child = composed.getChild();
             if (child != null && child instanceof RefModel && allDefinitions != null) {

pom.xml

@@ -940,7 +940,7 @@
         </repository>
     </repositories>
     <properties>
-        <swagger-parser-version>1.0.52</swagger-parser-version>
+        <swagger-parser-version>1.0.53-SNAPSHOT</swagger-parser-version>
         <scala-version>2.11.1</scala-version>
         <felix-version>3.3.0</felix-version>
         <swagger-core-version>1.6.2</swagger-core-version>