Exclude records with bitstream names readme.txt or readme.txt.txt
Handle cases where formatId is the Dryad Metadata format
Renamed queryDatabase methods to include DataFiles
Remove obsoleted buildQuery method

method built a solr query
Cleanup - remove references to unused solr server
Rename myData to myFiles, add myPackages

myPackages shall contain the handle to the Dryad data packages collection
object listing will be updated to include data packages in the listing
Add methods for querying data packges

Database query is similar but does not consider bundles or bitstreams,
since packages do not have them.
Remove unnecessary try/catch, filter out withdrawn items
Set XML checksum and size

XML checksum and size were not being set - only bitstream results had
checksum/size