move db sync into nosetests package-level fixtures so that the existing nosetests attempt in hudson will pass

nova/tests/__init__.py

@@ -34,3 +34,8 @@
 # The code below enables nosetests to work with i18n _() blocks
 import __builtin__
 setattr(__builtin__, '_', lambda x: x)
+
+
+def setup():
+    from nova.db import migration
+    migration.db_sync()

run_tests.py

@@ -26,10 +26,6 @@ from nose import config
 from nose import result
 from nose import core
 
-gettext.install('nova', unicode=1)
-
-from nova.db import migration
-
 
 class NovaTestResult(result.TextTestResult):
     def __init__(self, *args, **kw):
@@ -66,9 +62,6 @@ if __name__ == '__main__':
                       env=os.environ,
                       verbosity=3)
 
-    migration.db_sync()
-
-
     runner = NovaTestRunner(stream=c.stream,
                             verbosity=c.verbosity,
                             config=c)