Crash using RmlUi_Renderer_GL3 Backend

[Manvin1]

In my environment (SDL2 and OpenGL) the RenderInterface_GL3::RenderCompiledGeometry
(in https://github.com/mikke89/RmlUi/blob/master/Backends/RmlUi_Renderer_GL3.cpp) leads to crash because the Vertex Array is not unbind after the draw and, in my case, the ambient binds the Vertex Array and the Element Buffer constantly.

Unbinding the Vertex after glDrawElements (line 448) solves the problem.

[mikke89]

I agree it is safer to unbind the vertex array after use, so I went ahead with your suggested fix. Thanks!