Log Message:
Update to libXmu-1.0.5. Changes:

Add libX11 to libXmu dependencies
Add README with pointers to mailing list, bugzilla & git repos
Add pointer to API docs in xorg-docs to README
Migrate to xorg macros 1.3 & XORG_DEFAULT_OPTIONS
libXmu 1.0.5
Switch to winsock2
Fix build problems on WIN32 platforms
libXmu: check for LONG64, not LONG_64
nuke RCS Ids
Compile warning fix by using Cardinal instead of int.
Janitor: make distcheck, compiler warnings, .gitignore.