BatchNode and physics : Reverted previous change and made the batchNode batch geom to ignore physics.
see post http://jmonkeyengine.org/forum/topic/batchnode-breaks-createmeshshape/page/2/#post-200684

git-svn-id: http://jmonkeyengine.googlecode.com/svn/trunk@10076 75d07b2b-3a1a-0410-a2c5-0572b91ccdca
BatchNode now updates its geometric state right after batching. 
This is to avoid to wait for the next update for the generated mesh to be consistent with underlying geometries.

git-svn-id: http://jmonkeyengine.googlecode.com/svn/trunk@10077 75d07b2b-3a1a-0410-a2c5-0572b91ccdca