Lightweight Java Game Library Code

Fixed ByteOrder of @Return ByteBuffers.
Cleaned up Drawable interface and introduced a reusable base implementation.
Added support for disabling runtime function checks, buffer checks and state tracking. Activated with -Dorg.lwjgl.util.NoChecks=true

Remove extra permissions from XRandR and just allow minimal permissions needed by the LinuxDisplay.

Added support for a new Drawable type (SharedDrawable) that shares its context with another Drawable.
Added new methods to the Drawable interface (makeCurrent, releaseContext, destroy).
Added a background thread texture loading test (using either Pbuffer or SharedDrawable).

minor tweak to XRandR class to add AccessControllers to remaining methods that need it.

fixed tag name

tagging 2.4.2

2.4.2 release

fix: When using unsigned jars with signed lwjgl jars it fails when creating a Display on linux with an AccessController error. This is due to the new XRandR class missing a AccessController.doPriviledged method when it requires out of sandbox access. (LWJGL Applet Distribution is borken on linux without this fix)

tagging 2.4.1

New extensions: AMD_conservative_depth, EXT_shader_image_load_store, EXT_vertex_attrib_64bit, NV_gpu_program5, NV_gpu_shader5, NV_shader_buffer_store, NV_tessellation_program5, NV_vertex_attrib_integer_64bit