move to txssmi + tests
make tests work with real redis and add test for SMS MO
StubbedTruteqService (thanks @jerith)
Stub out less stuff in the truteq transport tests and fix the bugs that uncovers.
test for remote logout (thanks @jerith)
warn when receiving a disconnect request and do nothing else
Merge branch 'feature/issue-705-txssmi-transport' into develop
Merge branch 'develop' of github.com:praekelt/vumi into develop