* Added option to use default return type by adding /ucsc/ at the end

 * Added option to use default return type by adding /ucsc/ at the end
   of the bedfile url (good for debugging, and possibly for displaying
   on ucsc genome browser, but may have been another bug that was
   preventing the default return method from working with UCSC).
 * Used Diane's auto open feature for reading the bz2 eland_result files.