Lightweight Java Game Library Code

Cursor.java:Fixed case where delays == null

Reverted the relative coordinate 'bug' - that's the required behaviour when Window.update is calling Mouse.poll. Consider the case where we call Window.update twice before checking getD*: with the old behaviour, only the deltas between the updates are reported, not those before the first update

reworked animated native cursors, to use X animation when required
added initial setGrabbed(boolean) feature - Work in progress
both needs verification on linux

fixed relative coordinate bug

Fix rest of the openal examples

removed size argument from alBufferData and added additional buffer types

Folded read into poll to simplify interface

Removed Keyboard.initIDs

Make poll deltas accumulative, and only reset on getD*

Updated docs to reflect the dirty flag change