Add an option to turn off interpolation for LinePath shapes
Add interpolate option to toJSON function to allow for loading existing snapshots
Merge pull request #237 from bholzer/interpolation-option

Add an option to turn off interpolation for LinePath shapes
Update CHANGES.txt for v0.4.1
Update package.json, bower, readme for 0.4.1
More CHANGES.txt
Merge pull request #239 from irskep/changes-041

Prepare 0.4.1 release
LinePathShape.interpolate -> smooth
Fix un-smoothed line path shape loading