Updated dependency and added Python 3 compatibility.

[ApplePy]

Updated the pysignals code to v1.9.8 from Django, and fixed str<-->bytes compatibility issues between Python 2 and 3.

My test (I left it out of the template test class; it assumes there's a WeMo switch on the network):

#!/usr/bin/env python
# -*- coding: utf-8 -*-

"""
test_ouimeaux
----------------------------------

Tests for `ouimeaux` module.
"""

import unittest


from ouimeaux.environment import Environment
import time


class TestOuimeaux(unittest.TestCase):

    def setUp(self):
        pass

    def test_switch(self):

        # Set up environment and find devices
        env = Environment()
        env.start()
        env.discover(5)

        # Make sure switches were found (Note: This is specific to my testing environment)
        if len(env.list_switches()) <= 0:
            raise ValueError("There should have been a switch detected.")

        # Toggle each switch to ensure proper connection
        for switch_name in env.list_switches():
            switch = env.get_switch(switch_name)
            switch.toggle()
            time.sleep(1)
            switch.toggle()

    def tearDown(self):
        pass

if __name__ == '__main__':
    unittest.main()

Thanks to the submitter of #107 for helping speed the process up.

[iancmcc]

Will test this this evening.

[iancmcc]

Tested on Python 3.5 and 2.7, LGTM