Log Message:
(math/R-VGAM) Updated 1.1.6 to 1.1.8

                CHANGES IN VGAM VERSION 1.1-8

NEW FEATURES

    o   Warnings from R-devel addressed.
    o   acat(), cumulative(), cratio(), sratio() have arguments
        'thresholds', 'Tref', 'Treverse'.
    o   hdeffsev() has been edited.
    o   margeff() works for poissonff(), negbinomial() and
        posnegbinomial() objects.
    o   multilogit() did not handle 1-row arguments correctly when
        'inverse = FALSE'. Now vglm(y, multinomial) handles a 1-row y,
        as well as acat and cumulative and [cs]ratio.
    o   rrvglm.fit() is more robust with respect to 'one.more'.
    o   plot.vgam() issues an error if sm.os()/sm.ps() is used with
        deriv.arg > 0.
    o   New data set: budworm.

BUG FIXES and CHANGES

    o   rainbow.sky has a new green.
    o   zoabetaR() handles the argument 'constraints'. Thanks
        to Riccardo Lo Martire for helping to find the bug.

                CHANGES IN VGAM VERSION 1.1-7

NEW FEATURES

    o   Slot 'rqresslot' added to VGAM family functions, for implementing
        randomized quantile residuals.
        Available in about 50 family functions such as poissonff() currently.
    o   Slot 'rqresslot' added to VGAM family functions, for implementing
    o   Argument 'label.it' added to model.matrixvlm().
    o   New generic and/or methods functions: rqresid(), rqresiduals().
    o   New data set: lpossums.
    o   Tested okay on R 4.2.1.

BUG FIXES and CHANGES

    o   cumulative() has been replaced by its version prior
        to 2021-05. Evidently some so-called improvements
        created some bugs. Thanks to Johanna Neslehova for
        alerting me to this.
    o   bistudentt() was documented wrong; thanks to
        Iago Gine Vazquez for finding this.
    o   fill() now deprecated; replaced by fill4().