[DS-803] Make 'bin/dspace harvest -g' actually function.

And my usual whitespace cleanup.
Also make org.dspace.harvest.OAIHarvester.verifyOAIHarvester more rugged.
More silly whitespace
Merge pull request #279 from mwoodiupui/DS-803

[DS-803] Make 'bin/dspace harvest -g' actually function.