When an exception is caught by a consumer's Camel, pass the Exception back to caller over the AMQP reply queue.
Added unit test fo when an exception is caught by a consumer's Camel, pass the Exception back to caller.
Added comments to error-handling Java code.
Increased maven repository version to 1.4 in README example.
Merge pull request #20 from michael-alford/master

Version 1.4:  Pass exceptions back to caller over-the-wire for synchronous (InOut) calls.