[osg-submissions] Key processing change in OsgviewerWX + small fix

[Mario Valle]

A small change to make OsgviewerWX accepts the correct keypress honoring Shift, control
and caps lock. Without this change pushing 's' was the same that pushing 'S' and so no on
screen statistics where visualized.

Also the GraphicsWindowWX attributes list has been null terminated as per:
http://www.wxwidgets.org/manuals/stable/wx_wxglcanvas.html#wxglcanvas

Ciao!
		mario


P.S.: sorry, was sending it to the wrong address...

-- 
Ing. Mario Valle
Visualization Group                              | http://www.cscs.ch/~mvalle
Swiss National Supercomputing Centre (CSCS)      | Tel:  +41 (91) 610.82.60
v. Cantonale Galleria 2, 6928 Manno, Switzerland | Fax:  +41 (91) 610.82.82



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