edit-mesh improvements to select shortest path
- Ctrl+RMB only worked for edges & faces
- Menu item 'Select Shortest Path' only worked for vertices.

Now Ctrl+RMB works for vertices and the menu item works for verts/edges/faces (depending on the current selection).


git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@57224 954f8c5b-7b00-dc11-b283-0030488c597c