merge libXcursor 1.2.3, libXi 1.8.2, libFS 1.0.10, libXfont2 2.0.7, and
libXtst 1.2.5.

re-port christos' fix for memory leak. also, fix build.

merge libXtst-1.2.4 and libXxf86vm-1.1.5

CID 1373522: Fix memory leak

merge libXi 1.7.7, libXrandr 1.5.1, libXrender 0.9.10, libXtst 1.2.3,
libXv 1.0.11, libXvMC 1.0.10., and libxcb 1.11.1.

revert 'const' removal changes, now that libXext is also updated.

merge libXt 1.1.4 and libXtst 1.2.2.

fix some const issues.

initial import of libXtst-1.2.1

initial import of libXtst-1.2.0

initial import of libXtst-1.1.0

initial import of libXtst-1.0.3