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XD-716 Fix hang on posting to HTTP source

- Make NettyHttpInboundChannelAdapter return Http
500 response if Message Consumer throws Exception

- Prevent Exception initializing Lettuce conn on I/O
thread by adding an ExecutionHandler to the
pipeline
XD-353, XD-691, XD-703: Cleanup runtime configuration
XD-353 - fixed ContainerMain launch
XD-353 - added assert message to ModuleDeployerTests
XD-691 fixed enableJmx not working
XD-353 - fixed multiple global bean instances in SingleNodeMain
XD-353 - cleanup SingleNodeMain and ContainerMain per review comments