Minor clean up.
3DSMax Exporter - Corrected specular export, support Phong

Made a correction to the way the specular coefficient is exported; this was using the 3DSMax "Glossiness" attribute. It has been corrected to use the 3DSMax material "Specular Level". The "Glossiness" has been correctly remapped to the "Shininess" three.js attribute. 

Additionally included Phong shading, so the three.js Phong material will be used if Phong when used in 3DSMax - without this the bump maps are disregarded as they aren't rendered with Lambert materials (default material when unspecified). Blinn/Metal ShaderType materials will continue to be exported as Lambert.
Merge pull request #5367 from iepure/patch-4

3DSMax Exporter - Corrected specular export, support Phong
Merge branch 'dev' of https://github.com/mrdoob/three.js into dev
Scene: Removed matrixAutoUpdate overwrite.
This fixes colada keyframe example but breaks helpers. Time to refactor Helpers...
Updated builds.
Fixed helpers so they work with the new Scene behaviour.
Updated builds.
Compressed textures with a single mip level have to use Linear min filter, instead of the default Mip filter.
coverter_to_threejs.py: added option to not copy texture files
coverter_to_threejs.py: added option to force y up
coverter_to_threejs.py: removed trailing whitespaces
Added zoom property to cameras. See #5364.
Updated builds.
Merge pull request #5371 from Herst/dev

coverter_to_threejs.py: two new options and removed trailing whitespaces
Fixed OrthographicCamera zoom. See #5364.
Updated builds.
Merge branch 'dev' of https://github.com/mrdoob/three.js into dev
PerspectiveCamera: More robust fov. See #5364.
Updated builds.