LPoint: fixed: not matching the corresponding array size in LuceO
LuaO: added isEmpty, matching none or nil
LPath: addStar uses LuceO's luce_topoint instead of LuaO's getPoint
LGraphics: implemented setGradientFill without implementing GradientColour object -- get parameters as if one would instanciate a GradientColour object
LOpenGL: (wip)

instanciante an OpenGLShaderProgram with LOpenGLComponent::OpenGLShaderProgram

added method clearGL, to reset the OpenGL state

added method renderGLSL, to render from a provided or created OpenGLShaderProgram (unfinished)

renderOpenGL callback provides a Graphics object with openGL context
LJUCEApplication: added a new callback, initialised, called once initialising has finished -- might be useful on asynchronous environmnent like iOS to execute some actions once the application is ready; could also be called after anotherInstanceStarted on OS X
updated TODO, build with speed optimisation