Depend on 0.6.0-rc.2
getHostName -> getHostname
Move brooklyn-marklogic bash scripts to src/main/resources

Would like to move upload/ too but it rather complicates the install process.
Demo entity that uses MLCP to pump data to MarkLogic nodes

* Downloads and formats pubchem data from US gov site
* Dowmloads MLCP from MarkLogic
* Runs MLCP against data to pump to host on effector invocation
* Incorporated into MarkLogicDemoApplication