Added travis ci build file
Added needed lib glut
Update .travis.yml
Removed the need for c++11
Remove lambda to be able to compile on old gcc
Fixed override keyword failing linux builds
Fixed linux missing stdio.h header
Added sandbox support for windows
Reduced min cmake version for win build
Fixed win build failing due to undefining a define for sandbox
Fixed setSize not working for renderer, call invalidateSize instead
Removed the need for c++11
Remove lambda to be able to compile on old gcc
Fixed override keyword failing linux builds
Fixed linux missing stdio.h header
Merge branch 'master' into mac