Now only those fields of the respective hint struct are set that
are actually valid in the input data.
The changed functions are:
XSetSizeHints(), XSetWMHints() and XSetWMSizeHints().
- For Xcomposite and Xdamage, don't link the build system out of the xc tree
- Link the public X11 headers into their own directory
- Add links to XKeysymDB and XErrorDB
- Add links to all the Xlib man pages
- Add links to the lcUniConv subdirectory
- Conditionally include config.h in Xlib source
