Extended max size for group node types from 200 to 400, in case users need long socket names visible.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@57179 954f8c5b-7b00-dc11-b283-0030488c597c
Don't hide sockets in the node properties panel. This feature is only useful to reduce the size and clutter of actual nodes, in the panel it's better to show all meaningful inputs.

git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@57180 954f8c5b-7b00-dc11-b283-0030488c597c