Fix API status code for start/stop/suspend/reload a node. Fixes #1353.

Fix issues with test.
Update documentation.

docs/api/v2/compute/frame_relay_switch/projectsprojectidframerelayswitchnodesnodeidsuspend.rst

@@ -9,12 +9,12 @@ Suspend a Frame Relay switch (does nothing)
 
 Parameters
 **********
-- **project_id**: Project UUID
 - **node_id**: Node UUID
+- **project_id**: Project UUID
 
 Response status codes
 **********************
-- **204**: Instance suspended
 - **400**: Invalid request
 - **404**: Instance doesn't exist
+- **204**: Instance suspended