Log Message:
Update to 1.1.0

* Fix build with math/mpfr-4.0.0

Changelog:
Changes in version 1.1.0:
  - Minimally required library versions: GMP 5.0.0 and MPFR 3.0.0
  - Fixed issues with MPFR 4.0.0
  - New functions: mpc_cmp_abs, mpc_rootofunity
  - Improved speed for corner cases of mpc_asin, mpc_sin, see
    http://lists.gforge.inria.fr/pipermail/mpc-discuss/2013-December/001266.html
  - Rewrite of the testing framework
  - New mpcbench tool, used with "make bench"
  - Fixed handling of over- and underflows with directed rounding in the
    "other direction" for mpc_cos, mpc_sin, mpc_exp and mpc_pow, see
    http://lists.gforge.inria.fr/pipermail/mpc-discuss/2015-March/001336.html
  - Fixed a bug in mpc_atan(0,y) with |y| near 1, see
    http://lists.gforge.inria.fr/pipermail/mpc-discuss/2017-March/001404.html