Stress improts

* Partial relative import fix
* Wildcard imports removed
* stress/utils/util.py renamed to stress/utils.py
* time/datetime module aliasing removed

Change-Id: Ib0b234581695604c10c51915210e4643a8732874
diff --git a/stress/test_server_actions.py b/stress/test_server_actions.py
index a2032f0..f4ddf23 100644
--- a/stress/test_server_actions.py
+++ b/stress/test_server_actions.py
@@ -18,12 +18,11 @@
 actions veriy that the API call was successful or not."""
 
 import random
-import time
 
 import pending_action
+import stress.utils
 from tempest.exceptions import Duplicate
 import test_case
-from utils.util import *
 
 
 class TestRebootVM(test_case.StressTestCase):
@@ -81,7 +80,7 @@
 
 class VerifyRebootVM(pending_action.PendingServerAction):
     """Class to verify that the reboot completed."""
-    States = enum('REBOOT_CHECK', 'ACTIVE_CHECK')
+    States = stress.utils.enum('REBOOT_CHECK', 'ACTIVE_CHECK')
 
     def __init__(self, manager, state, target_server,
                  reboot_state=None,