Lightweight Java Game Library Code

When an applet is run in debug mode, output in console that a cached version of the applet is being loaded.

A number of people were having problems with applets not updating, this was due to them leaving the cache tag on by mistake, hopefully this should alert them earlier and avoid time being wasted in tracking the issue.

fixed focus loop when using Display.setParent() on linux, this caused input keys to be missed as the focus shifted from parent to Display and back again.

updating version to 2.1.0

Added support for glNamedBufferDataEXT(int buffer, long size, int usage).

Added Display.setDisplayModeAndFullscreen(mode) to switch mode and set fullscreen in one call (idea stolen from MatthiasM). Tweaked FullScreenWindowedTest to use the new method.

Renamed DisplayMode.isFullscreen() to DisplayMode.isFullscreenCapable and made it public

jdkhome should be a jdk path, not a jre path

mingw_ant/build.xml improvements

Support win64 build from mingw_ant/build.xml

Windows: Handle missing va_copy macro in MSVC