Log Message:
Update to 7.0.13:

Alan Hourihane (1):
      avoid checking for fds_bits on mingw

Colin Harrison (2):
      Use winsock2.h
      Use Sleep() instead of sleep() on windows

James Cloos (2):
      Fix typo in XF86Keysym.h
      Add more dead key syms

Jeremy Huddleston (3):
      Apple: Cleaned up some Apple definitions
      Apple: Define _DARWIN_C_SOURCE otherwise _XOPEN_SOURCE,
      _POSIX_SOURCE, or _POSIX_C_SOURCE will cause fd_mask to not
      be defined due to the strict namespace
      Apple: Added a comment to explain _DARWIN_C_SOURCE

Markus Kuhn (1):
      Added comment to slightly discourage the definition of ever
      more Unicode keysyms

Peter Hutterer (2):
      Add GenericEvent and xGenericEvent definitions.
      Bump to 7.0.13.