DISPATCH-1684: Test should open fallback receiver on fallback connection
DISPATCH-1684: Test should open fallback receiver on fallback connection

Fallback_dest test class SwitchoverTest mistakenly opens the fallback
receiver on the primary connection.

This closes #772

ganeshmurthy/qpid-dispatch,ErnieAllen/qpid-dispatch,ganeshmurthy/qpid-dispatch,ErnieAllen/qpid-dispatch,ChugR/qpid-dispatch,apache/dispatch,apache/dispatch,apache/qpid-dispatch,mgoulish/qpid-dispatch,ErnieAllen/qpid-dispatch,ted-ross/qpid-dispatch,ted-ross/qpid-dispatch,apache/dispatch,kgiusti/dispatch,ChugR/qpid-dispatch,mgoulish/qpid-dispatch,ganeshmurthy/qpid-dispatch,apache/dispatch,apache/dispatch,ChugR/qpid-dispatch,ChugR/qpid-dispatch,kgiusti/dispatch,ted-ross/qpid-dispatch,mgoulish/qpid-dispatch,ChugR/qpid-dispatch,ChugR/qpid-dispatch,ted-ross/qpid-dispatch,apache/dispatch,ErnieAllen/qpid-dispatch,mgoulish/qpid-dispatch,kgiusti/dispatch,apache/qpid-dispatch,ErnieAllen/qpid-dispatch,ted-ross/qpid-dispatch,kgiusti/dispatch,ganeshmurthy/qpid-dispatch,mgoulish/qpid-dispatch,ted-ross/qpid-dispatch,ganeshmurthy/qpid-dispatch,apache/qpid-dispatch,kgiusti/dispatch,ganeshmurthy/qpid-dispatch,ErnieAllen/qpid-dispatch,apache/dispatch,mgoulish/qpid-dispatch,apache/qpid-dispatch,apache/qpid-dispatch,apache/qpid-dispatch,kgiusti/dispatch