initial import of libX11-1.6.3

initial import of libX11-1.5.99.902

Let libX11 load and make available the newer (X11R6) callback-based API
for XIM (expected by emacs).

Patch from Ian D. Leroux <idleroux@fastmail.fm> on pkgsrc-users
following a hint by Nhat Minh Lê <nhat.minh.le@gmail.com>.

merge libX11 1.4.1

initial import of libX11-1.3.6. this includes a few fixes to keysyms,
the removal of the XKeysymDB, and aliases for nb_NO.utf8 and nn_NO.utf8.

initial import of libX11-1.3.5

initial import of libX11-1.3.4

initial import of libX11-1.3.3

initial import of libX11-1.2.2

initial import of libX11-1.2

initial import of libX11-1.1.4