Print more stuff to stdout to help make travis-ci don't error.

theano/scan_module/tests/test_scan.py

 import os
 import shutil
+import sys
 from tempfile import mkdtemp
 import time
 import unittest
@@ -3688,7 +3689,9 @@ class T_Scan(unittest.TestCase):
 
         cost = result_outer[-1]
         H = theano.gradient.hessian(cost, W_flat)
+        print >> sys.stderr, "."
         f = theano.function([W_flat], H)
+        print >> sys.stderr, "."
         f(numpy.ones((8,), dtype='float32'))