Added warning in make_mapped_torso_node_and_element_groups if no overlap between electrodes and default torso.
Added warning in make_mapped_torso_node_and_element_groups if no
overlap between electrodes and default torso.


git-svn-id: 4705079bc6b8aadf675e3696f5c015a6aa4916e3@1484 3c1deb5b-d424-0410-962d-aba41a686d42

hsorby/zinc,hsorby/zinc,OpenCMISS/zinc,OpenCMISS/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc