PR category/123
math/p5-Math-BigInt: update to 1.999837 (from 1.999827)
* Improve compatibility with older versions of the Math-BigRat distribution.
* Re-enable upgrading in Math::BigFloat->bdiv().
* Improvements to upgrading, downgrading, and rounding:
  . Fix bug related to upgrading in Math::BigInt->brsft() in Perl <= 5.16.
  . Fix Math::BigFloat->bpi().
  .  Improve as_int(), as_float(), and as_rat().
* Improve methods div_scale() and round_mode() so they work better with
  subclasses. This fixes CPAN RT #125430.
* Make div_scale() accept a Math::Big(Int|Float|Rat) object as input. This
  fixes CPAN RT #140599.
* Add new methods numerator(), denominator(), and fparts().
* Fix bug in to_ieee754(). Avoid that the significand overflows.

(ast)