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         *              1.3 SERIES NEWS                   *
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      o 3 new classes created:
         i.  'ABset': container for quantile-normalized A and B
        	    intensities for both SNP and copy number probes.  Required
        	    assay data elements are 'A' and 'B'.  Extends eSet
                 - For nonpolymorphic probes, the quantile normalized
                   intensity is stored in the 'A' assay data element.
                   The corresponding row in the 'B' assay data element
                   is NA.  This is a bit inefficient, but greatly
                   simplifies downstream analyses.  In particular, '['
         ii.  'CrlmmSetList': container for results from preprocessing
 	     and genotyping.  This object is a list.  The first
 	     element of the list is an ABset.  The second element is a
 	     SnpSet containing genotype calls.  The two elements are
 	     required to have identical featureNames and sampleNames.
        		- added several methods for subsetting and accessing
  		  elements of this object, including featureNames,
  		  sampleNames, and "[".
          iii. 'CopyNumberSet': contains locus-level estimates of copy
   	      number for SNPs and polymorphic probes.
        	        - Required assay data elements are 'CA' and 'CB',
                   corresponding to the absolute copy number for allele
                   A and B, respectively.
 	        - For nonpolymorphic probes, the total copy number is
                   stored in the 'CA' slot and a NA is recorded for the
                   corresponding row in the CB matrix. 
 		- Useful methods: 'copyNumber', 'ellipse', 'points'
      o 'crlmmWrapper' function does preprocessing
        (quantile-normalization) and genotyping, saving an object of
        class CrlmmSetList for each chromosome
      o 'computeCopynumber' now requires an object of class
         'CrlmmSetList' and returns an object of class 'CopyNumberSet'.