Recommend to use Xbuf instead. it is maintained and is in a stable mood and has the most support over exporting from blender to JME in comparison with Ogre or Blender importer. You can also import animated models easily using xbuf.
here is Xbuf git: xbuf · GitHub
I am currently using Xbuf.
If you decide to use xbuf too and have any question regarding setting it up and using it, you can ask. I will gladly help.
Edit: It also supports spatial animation. see :