middleware for SSH access
less camel casing
Merge branch 'develop' into feature/issue-371-manhole-middleware
Surgery on heartbeat initialization and testing.

  * Ensure that Vas2NetsTransport calls Transport.stopWorker() on
    teardown
  * Ensure that the vas2nets tests call stopWorker() in teardown
  * Add 'worker_name=unnamed' to stubbed worker config in tests
For tests, set worker_name config entry in VumiWorkerTestCase.get_worker()
Merge pull request #485 from praekelt/feature/issue-485-worker-health-monitoring

For health monitoring, workers now periodically emit heartbeat messages.
allow to_addr override
Merge branch 'develop' of github.com:praekelt/vumi into develop
hearbeat monitor adds txJSON-RPC as a dependency
Adds AddressedTelnetServerTransport and AddressedTelnetTransportProtocol
tests
Merge branch 'feature/issue-489-addressed-telnet-server-transport' into develop
remove uncessary tearDown()
Merge branch 'develop' into feature/issue-487-better-worker-identification
merging in develop
Allow override of transport_type in telnet tx.
getting test set up
Start JSON RPC API for tagpool manager.
First test for TagpoolApiServer.
More tests for TagpoolApiServer.