Embed Scroller of SmartTable in ui:Expand to make it work again.
Fix the version types for the json project.
Update the dependencies.
replace calls to gluProject with inline projection code

The implementation is duplicated in Gui::Screen and Graphics::Frustum,
but since Gui::Screen will be going away in the future I think that
duplication doesn't count.
don't look for or link to libGLU in the autotools build
Merge remote-tracking branch 'johnbartholomew/remove-glu'
Merge remote-tracking branch 'lwho/workaround_scroller_bug'
Merge remote-tracking branch 'fluffyfreak/FixVS2012JSON'