0.1.1 RC Parse metadata.xml files so that we can get Snapshot Artifacts reliably. 

Introduced a dependency on nori (for xml parsing). 
Cleaned up the logging. 
Parse the metadata to determine the name of the snapshot artifact we want to snag for local and remote repos. 
Don't explicitly use mvn if we're doing a fetch (Just call dependency.get like we do for every other jar) and bomb out hard if we fail.