Add Jenkins build_dir to configured paths

tests/tests.py

@@ -18,7 +18,7 @@ def data_path(suffix=''):
 
 class BasicTests(unittest.TestCase):
     def setUp(self):
-        config = Ufo.Config(paths=['../build/src'])
+        config = Ufo.Config(paths=['../build/src', '../build_dir/src'])
         self.pm = Ufo.PluginManager(config=config)
         self.graph = Ufo.TaskGraph()
         self.sched = Ufo.Scheduler(config=config)