added exception handling, updated client

lib/swagger-client.js

@@ -673,6 +673,7 @@ Operation.prototype.execute = function(arg1, arg2, arg3, arg4, parent) {
   var obj = {
     url: url,
     method: this.method,
+    body: args.body,
     useJQuery: this.useJQuery,
     headers: headers,
     on: {
@@ -1318,7 +1319,12 @@ ShredHttpClient.prototype.execute = function(obj) {
     if(contentType != null) {
       if(contentType.indexOf("application/json") == 0 || contentType.indexOf("+json") > 0) {
         if(response.content.data && response.content.data !== "")
-          out.obj = JSON.parse(response.content.data);
+          try{
+            out.obj = JSON.parse(response.content.data);
+          }
+          catch (e) {
+            // unable to parse
+          }
         else
           out.obj = {}
       }