version 1.9.0
    o Bugfix: Added signature( "FixedExpressionData", i=ANY, j=missing ) for the "[" and "[[" functions
    o More indepth checking of function arguments
    o Additional unit tests 

version 1.0.0

    o The first publically available version of the geneClassifiers package. This packages currently contains a number of gene classifiers relating to survival in Multiple Myeloma. 

