Add file for vmd
Fix image
Change r0
Change some parameters in run.sh
Add SDPD single polymer setup
Delete sdpd-polymer-run
Merge branch 'local_octave' of github.com:qingguang/lammps-sph into local_octave

Conflicts:
	examples/USER/sph/sdpd-polymer-roller/2d-vars.lmp
	examples/USER/sph/sdpd-polymer-roller/sdpd-polymer-run.lmp