Add additional @AutoConfigureAfter elements to ActiveMQAutoConfiguration
and HornetQAutoConfiguration to ensure that they are configured after
JndiConnectionFactoryAutoConfiguration.

The possible sources for a JMS ConnectionFactory are:

1. JNDI
2. HornetQ (embedded broker or an external broker)
3. ActiveMQ (embedded broker or an external broker)

The last two auto configurations must run after JTA auto-configuration
has completed as it may register additional beans that are necessary to
enable XA.

Previously, the HornetQ embedded broker would start regardless of the
presence of a ConnectionFactory as a ConditionalOnMissingBean was
missing. Furthermore, there was no order condition for the JNDI
auto-configuration so it may just run after one of the broker has been
found.

JNDI takes now precedence to be consistent with the regular DataSource
auto configuration.

Fixes gh-1821