MOD: Fixing compiler warning and VS2013 issue with C++11 steady_clock
MOD: Fixing compiler warning and VS2013 issue with C++11 steady_clock

cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two,cbeck88/cegui-mirror-two