Added a normalize function for MSISDN in utils. Added docs and tests for the funtion.
Failing test illustrating bug #201
Ensure AppTester's rethrowing listener persists across App teardowns
Remove unused AppErrorEvent from tester's tests
Merge branch 'develop' of github.com:praekelt/vumi-jssandbox-toolkit into develop
Merge branch 'develop' into release/0.2.x
Version 0.2.4