libxcb: update to 1.15.

Alan Coopersmith (1):
      xcb_auth: Quiet -Wimplicit-fallthrough warning in get_authptr()

Demi Marie Obenour (1):
      Fix integer overflows in xcb_in.c

Eduardo S叩nchez Mu単oz (1):
      Use the 'present' field to properly check that the XC-MISC

Hodong (1):
      Fix a memory leak

Julien Cristau (2):
      Increment libtool version info for libxcb-dri3
      Add newline when printing auth/connection failure string to stderr

Matt Turner (1):
      libxcb 1.15

Peter Harris (2):
      Fix build on Windows
      Fix writev emulation on Windows

Povilas Kanapickas (4):
      c_client.py: Extract get_expr_field_names()                                                                                                                                        c_client.py: Use get_expr_field_names directly to resolve list fields                                                                                                              c_client: Extract _c_get_field_mapping_for_expr()
      c_client.py: Implement handling of <length> element

Ran Benita (3):
      tests: don't use deprecated fail_unless check API
      gitignore: add files generated by make check
      Avoid request counter truncation in replies map after 2**32 requests

Thomas Anderson (1):
      Fix hang in xcb_request_check()

Uli Schlachter (1):
      Improve/fix docs for reply fds functions

(wiz)