Changed DSO ID to lowercase id, so we don't get duplicate id and ID when serialized
Add DSpace license to code header
Bump Jersey version from 1.8 to 1.17.1
Minor tweak to DSO to fix it to serialize to xml
For handle lookup, return a (comm, coll, item, ...) instead of plain DSO

Also takes ?expand param too
Remove un-needed license file from dspace-rest path
Bitstream extends DSpaceObject. Also adding the mimeType to response