Added a short blurb to the README.md describing how to install to local maven repository.
Bugfixes/enhancements to Canvas
- Tweak to rmove() to better handle calls made before any other operation on the Canvas that sets a current position
- Updated circle(x, y, radius) method to directly call arc instead of using rcircle
- Renamed reset() method to resetStyles() and changed behavior to not set the current position to (0,0).  The old behavior would force inclusion of (0,0) in the bounding box, and that may not be a desired side effect.
- Several new flavors of append() methods: append(x, y, records, fillStyles, lineStyles), append(x, y, Canvas), append(x, y, Shape, fillStyles, lineStyles), append(x, y, ShapeTag).  The x and y parameters specify the insertion point (relative origin) for the appended records.