ENH: Make plot_displacements more flexible; change default arrow appearance.
DOC: Update README with scikit-image, pip installation.
DOC: Add reminder to update version string in docs
DOC: Made beginner instructions gentler
Merge pull request #125 from nkeim/update-sphinx-version

DOC: Add reminder to update version string in docs
Merge pull request #123 from soft-matter/readme-update

DOC: Update README with scikit-image, pip installation.
Merge pull request #105 from danielballan/arrows

ENH: Make plot_displacements more flexible; change default arrow appearance.

This should really be done with quiver, but is very annoying to get the arrows to look good.