Log Message:
If running native Linux, fail to install if the X11 libraries aren't
available "somehow" -- for X11_TYPE == "native", then just fail,
otherwise for X11_TYPE == "modular", then build the libX11 package to
satisfy the library requirements for "javaws" and "policytool".

This fixes pkg/36838 reported by Ondrej Tuma.

Bump the PKGREVISIONs for sun-jre14, sun-jre15, and sun-jre6.