clients: retry forever to connect to a missing message switch

This is expected to happen during initial system startup, and it
matches the default RPC behaviour.

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Add a simple shell script to run some RPC tests

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Add travis scripts

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
travis: deps include ssl and rpc

Signed-off-by: David Scott <dave.scott@eu.citrix.com>
Merge pull request #7 from djs55/clients-retry

clients: retry forever to connect to a missing message switch