Uri change

I've removed base_uri_secure and all calls to it to point to base_uri, and added a method to change the base_uri if needed. Mingle #129

1) base_uri is now an https uri instead of an http one.

2) base_uri is now configurable by the app with a call to Cb.configuration.set_base_uri.

3) Two new test have been added to test this functionality, one for the setting of the uri, and one to test that the base_uri is https.

4) Version has been updated to 1.0.2