Changes in version 1.46                         

    o   improved documentation exactLoglikelihood()

    o   innovationVariance()

                        Changes in version 1.45                         

    o   new function exactLoglikelihood()

    o   fixed warnings by adjusting namespace,
	importFrom("stats", "ARMAtoMA", "convolve", "fft", "rnorm", "toeplitz")

                        Changes in version 1.42                         

    o   minor documentation fixes

                        Changes in version 1.41                         

    o   minor issue with DHSimulate fixed

                  Changes in version 1.4 (2010-11-30)                   

    o   fixed NAMESPACE problem