2003-08-07  Nicholas Wourms  <nwourms@netscape.net>

    * include/sys/param.h (setbit): Add new bitmap related macro.
    (clrbit): Likewise.
    (isset): Likewise.
    (isclr): Likewise.
    (howmany): Add new counting/rounding macro.
    (rounddown): Likewise.
    (roundup): Likewise.
    (roundup2): Likewise.
    (powerof2): Likewise
    (MIN): Add macro for calculating min.
    (MAX): Add macro for calculating max.