Lightweight Java Game Library Code

Mac OS X: Added the -Wunused gcc flag

Linux: Add -Wunused to native compilation

Windows: Mapped VK_OEM_8 to KEY_GRAVE to match lwjgl 1.0 behaviour

Windows: Mapped VK_SNAPSHOT to KEY_SYSRQ and added workaround to a windows bug where WM_KEYDOWN is never generated for VK_SNAPSHOT

Windows: Added key mapping to KEY_EQUALS for VK_OEM_PLUS to match lwjgl1.0 with US keyboard layout

Bumped Sys.JNI_VERSION

Windows: Don't be too aggressive in clipping the cursor. Fixes a problem where the window is moved out of the screen when clicking the title bar while having the mouse grabbed

Windows: Removed an unused parameter from WindowsDisplay.clipCursor

Disable MacOSXDisplay.setIcon since there are no window icons on Mac OS X

Merge Windows and Linux privileged Runtime.exec usage into a method in LWJGLUtil. Linux: Added the recent freedesktop.org standard xdg-open script to the list of possible URL handlers.