Fix tests for Python 3.2 (use relative import)

test/test_integration.py

@@ -1,8 +1,8 @@
 import os
 import re
 
-import base
-from run import \
+from . import base
+from .run import \
     TEST_COMPLETIONS, TEST_DEFINITIONS, TEST_ASSIGNMENTS, TEST_USAGES
 
 import jedi