v1.3.14

rgl 1.3.14

Minor changes

• rgl.incrementID() has been added.
• An example using log axes has been added to the
  help page for axes3d().

Bug fixes

• clear3d("all"), calling bg3d() on the root
  subscene, and some cases of pop3d() involving the
  background could create a leak of a background object
  (issue #439). For back compatibility of saved results, these cases
  still increment the object ID number, but don't
  actually create a new object.
• rglwidget() displays didn't support objects with
  smooth = FALSE.