Removed the older version of python and added 3.5

In setup.cfg file the python 3.4 support is removed
and added 3.5
In tox.ini the python 3.5 is added

Change-Id: Ice4dd6734f75c357de18da0a86167c0a1174506c
diff --git a/setup.cfg b/setup.cfg
index 721ba4e..a54938b 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -16,8 +16,7 @@
     Programming Language :: Python :: 2
     Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.3
-    Programming Language :: Python :: 3.4
+    Programming Language :: Python :: 3.5
 
 [files]
 packages =