Made glutGet, for window width and height, return width and height determined by...

Made glutGet, for window width and height, return width and height determined by device rotation Now handles keyboard open/close (along wit device rotation while the keyboard is open) and resize The "back" operation now returns an ESCAPE key

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@1671 7f0cb862-5218-0410-a997-914c9d46530a