Add support for GUI subsystem link as suggested by Daniel Schlyder.

Update license text.


[SVN r22756]

tools/build

@@ -1 +1 @@
-Subproject commit d6d19a5d4b551a11608d49c5c09c99af4cea0579
+Subproject commit f3cacdab66cf1300e5a173d879094ad64304b16f