Updated README to accord with recent changes.
A few more formatting tweaks.
Changed calls from _send to send.
Split up long test suite into multiple test case modules.
Fix import and some pep8.
Merge pull request #4 from oubiwann/split-tests

Split tests
Merge branch 'master' into deferred-support-subscriber
Merge branch 'master' into more-examples
Merge branch 'deferred-support-subscriber' into more-examples
Removed white space.
Actually return the deferred.
Merge branch 'deferred-support-subscriber' into more-examples
Trying to debug pubsub ...