Work toward Python 3.4 support and testing

Change-Id: If36e1a5e51cf63e499acb374d4aeace608c13512
diff --git a/tox.ini b/tox.ini
index a071d4b..8fc908d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,6 +20,11 @@
          PYTHONHASHSEED=0
 commands = python setup.py test --slowest --testr-arg='tempest\.tests {posargs}'
 
+[testenv:py34]
+setenv = OS_TEST_PATH=./tempest/tests
+         PYTHONHASHSEED=0
+commands = python setup.py test --slowest --testr-arg='tempest\.tests {posargs}'
+
 [testenv:py27]
 setenv = OS_TEST_PATH=./tempest/tests
          PYTHONHASHSEED=0