Merge pull request #50 from ni/users/pvallone/return-204s-where-appropriate

Replace 200 return codes with 204s per service changes

Author: pvallone

message/nimessage.yml

@@ -99,7 +99,7 @@ paths:
           schema:
             $ref: '#/definitions/Topic'
       responses:
-        200:
+        204:
           description: Success
         401:
           $ref: '#/responses/Unauthorized'
@@ -121,7 +121,7 @@ paths:
           schema:
             $ref: '#/definitions/Topic'
       responses:
-        200:
+        204:
           description: Success
         401:
           $ref: '#/responses/Unauthorized'
@@ -144,7 +144,7 @@ paths:
           schema:
             $ref: '#/definitions/TopicAndMessage'
       responses:
-        200:
+        204:
           description: Success
         401:
           $ref: '#/responses/Unauthorized'
@@ -183,7 +183,7 @@ paths:
       parameters:
         - $ref: '#/parameters/Token'
       responses:
-        200:
+        204:
           description: Success
         401:
           $ref: '#/responses/Unauthorized'
@@ -431,4 +431,4 @@ definitions:
         type: string
     example:
       action: unsubscribe
-      topic: systemHealth
+      topic: systemHealth