Moved the window-resize code so that it happens whenever there is a

pending resize for the window, whether or not the window is visible or
in need of a redisplay.  The resize is now done before the visibility
and need-to-redisplay checks.

git-svn-id: svn+ssh://svn.code.sf.net/p/freeglut/code/trunk/freeglut/freeglut@414 7f0cb862-5218-0410-a997-914c9d46530a