Ensure we can connect to the JMS Broker everytime

[whikloj]

GitHub Issue: Islandora/documentation#2099

What does this Pull Request do?

Specifically checks that the getProtocol() method does not return null which is the root cause of our problems. If it does it tries to disconnect and re-connect which should throw a catchable exception and stop the exploding.

Also, starts using the islandora logger channel instead of the static \Drupal call. This is just code clean-up.

How should this be tested?

• With an existing Islandora setup
• Stop ActiveMQ (sudo service stop activemq)
• Try to add a new taxonomy term to the Language vocabulary.
• WSOD

Pull in this PR, clear cache and repeat.

Documentation Status

• Does this change existing behaviour that's currently documented? no
• Does this change require new pages or sections of documentation? no
• Who does this need to be documented for? no one
• Associated documentation pull request(s): 0_ or documentation issue ___

Additional Notes:

Interested parties

@Islandora/committers, specifically (@jordandukart)

[jordandukart]

Does what it says on the tin: Unable to connect to JMS Broker, items might not be synchronized to external services..

[jordandukart]

This looks good to go to me, tests are failing because of Islandora/documentation#2093.

[jordandukart]

@seth-shaw-unlv or @rosiel can you push the button (assuming this is also okay with you)?