APPoS for short, throughout the library including in mixed precision arithmetic which should now always promote to the highest precision of any of the arguments.
See https://svn.boost.org/trac10/ticket/13264.
Fix previously unsupported situation: conversion of narrow cpp_bin_float to wider integer type.
See https://svn.boost.org/trac10/ticket/13301.
Improve test coverage for cpp_bin_floats with large exponent types, and/or dynamic allocators.
Fix issue in numeric_limits::max() that caused a complement of a signed integer number to be taken when the allocator is dynamic.
Fix heuristic in exp() function that caused a crazy number of iterations to be taken when the exponent was very large.
