v0.7.0

New stuff

• Added pause/resume. Pausing a plot will continue until the end of the next motion at which the pen is in the 'up' position, so the plot is never paused with the pen down.
• Added an option to remove paths shorter than a configurable threshold (disabled by default).
• Reloading the page while a plot is in progress will now restore the in-progress plan, instead of showing a blank page. So the in-progress view will continue to work after a reload.

Old stuff that now works better

• The --device argument for specifying which device to connect to was being ignored. saxi will now listen to you when you tell it what to connect to.
• Loading a new SVG wasn't always triggering a replan. Now it does. Guaranteed 90% less confusion.

Also I plotted this