Fix history and regenerate docs.

[SVN r86083]
Enable divide_qr for mixed arguments.

[SVN r86193]
Optimize copying of allocator-free cpp_int's via memcpy.
Fix consistency of checks for exponents < 0 in powm.
Fixes #9231.
Refs #9236.

[SVN r86258]
Use memcpy in more places.
Add optimized bitwise operations for unsigned integers.
Fixes #9243.
Refs #9231.

[SVN r86262]
Fixes for cpp_bin_float

[SVN r86294]
Fix type of cast target when casting to allocator.
Add additional type of argument to frexp/ldexp.
Template integer types in float IO conversion routines.
Improve termination condition in asin code.
Fix some compiler errors that can occur in conversion routines.

[SVN r86339]