Updated: xorg-server-1.15.1-4

The following packages have been updated in the Cygwin distribution:

*** xorg-server-*1.15.1-4

These packages contain XWin and the other X.Org X11 servers.

The following cygwin-specific changes have been made since 1.15.1-3:

* Give the window opened by "View logfile" a better title
* Fix bugs in WGL GLX which prevented pbuffers from being created with 
certain fbconfigs
* Improve the check that window position is visible to work correctly 
for non-rectangular virtual desktops
* Downgrade the "forcing window to exist" log message from error to debug
* Some compilation warning fixes
* Remove an incorrect assertion in WGL GLX, triggered by 
glXSwapBuffers() in the piglit glx_make_current test

x86:
1860dde6aac061b0dfdda6f6d8058914 *xorg-server-1.15.1-4-src.tar.xz
9d0a0d8ec0489f2c82e6b3def4c4515a *xorg-server-1.15.1-4.tar.xz
1997c143d62cc3200a50a9c3dceb6e8b *xorg-server-common-1.15.1-4.tar.xz
185301523810734629a44b14c964551a *xorg-server-debuginfo-1.15.1-4.tar.xz
a6dd1aa066b982a0c569ffda02e1a5d7 *xorg-server-devel-1.15.1-4.tar.xz
1da132c818d94b65876d6efffa2ffc1e *xorg-server-dmx-1.15.1-4.tar.xz
dbcd9b591a283d2ae94ca45c73625f20 *xorg-server-extra-1.15.1-4.tar.xz
3c03a460a456018511643f4631996ece *xwinclip-1.15.1-4.tar.xz

x86_64:
4d0a8cf348241607677ebab936ffa930 *xorg-server-1.15.1-4-src.tar.xz
d0d82d4ba5f9c9f66714224702acc0b5 *xorg-server-1.15.1-4.tar.xz
7dad87510941a6cb1f8574ae34a9e067 *xorg-server-common-1.15.1-4.tar.xz
6c1b57cb93be5c7c3396b49d3fb6235c *xorg-server-debuginfo-1.15.1-4.tar.xz
344fc8ff65c7443065bb1d6a3116f7e1 *xorg-server-devel-1.15.1-4.tar.xz
641d55fcd6f12e856a73c1dc70b276b8 *xorg-server-dmx-1.15.1-4.tar.xz
628378b4437b78b5c2b141a6d4cc79d2 *xorg-server-extra-1.15.1-4.tar.xz
9bd491aa34e29abd51d3e9ef182e5294 *xwinclip-1.15.1-4.tar.xz