Update ShaderDynamic.js

Fix lighting clamping: Only clamp once, otherwise e.g. a colored object can not be brighter than its color no matter how bright a light you shine at it, which is of course wrong.
Remove font size clamping
fixed removal of original node from namespace when USEd instance had been deleted from scene
fixed removal of original node from namespace when USEd instance had been deleted from scene
Merge branch 'master' of https://github.com/x3dom/x3dom
Merge branch 'master' of https://github.com/x3dom/x3dom
Merge branch 'master' of https://github.com/x3dom/x3dom
Merge https://github.com/fhoech/x3dom into fhoech-master
added clamping flag for fontSize