em directory with tests, faded, them and travis update

tests/em/examples/test_Examples.py

@@ -0,0 +1,10 @@
+import unittest, os
+from SimPEG.EM import Examples
+
+class EM_ExamplesRunning(unittest.TestCase):
+
+    def test_CylInversion(self):
+        Examples.CylInversion.run(plotIt=False)
+
+if __name__ == '__main__':
+    unittest.main()