Remove old libev EV_MULTIPLICITY define.
Default 3d2d windows to having vsync on.
Move uniform helpers from templates to functions with function pointer argument.
There was really no need for the template (which works only if the symbol is a
function with external linkage).  It is probably better to generate less code
any with a non-template function, and it will also work with function pointers
(for example when using GLEW).