Adding ability to read, update and delete content
Re-adding Random for selecting objects to update/delete/read in random order
Adding preemptive auth for fcrepo3
Using long for file sizes, using XORShiftRNG instead of java.util.Random, using Jena to parse RDF object list
Switch between java.util.Random and XORShiftRNG using System property
Merge pull request #3 from futures/multi-function

Adding ability to read, update and delete content