Originally from build #631

Changes

1. Fix for use of SWT GLCanvas in headless mode (or with threading in worker mode).  See discussion in Bugzilla #484 (details / cgit)
2. Fix Bug 516 (Determine Java Version) / Fix OS X 10.5 linkage (weak framework, NEWT) (details / cgit)
3. Add verification script for compiled-in Java version; Add osx 32bit test script. (details / cgit)
4. Use glFlush() in favor of glFinish() for bug 548 and bug 533 fix - due to performance issues. (details / cgit)
5. Bug 551 validation. (details / cgit)
6. Minor edit: Suppress USE_WGLVersion_Of_5WGLGDIFuncSet message when default. (details / cgit)
7. GLDynamicLibraryBundleInfo: Remove 'nativewindow_x11' preload lib (implicitly loaded by NativeWindowFactory) (details / cgit)
8. javac - setup encoding to UTF-8 (details / cgit)