- Refactoring: Reorder path config to group (non-modular-dependent) image

paths together (and correct code comment)
- Docs: CHANGES clarifications/fixes
- Docs: Migrations documents section
- Docs: Add code comment re: use of `extIconsPath` in Mathjax
- Docs: Add JSDoc indicate @this for `ExtensionInitResponse#callback`
- Build: Update build files
- npm: Bump to 3.1.0

editor/svgcanvas.js

@@ -1102,6 +1102,7 @@ const runExtensions = this.runExtensions = function (action, vars, returnArray)
 */
 /**
  * @function module:svgcanvas.ExtensionInitResponse#callback
+ * @this module:SVGEditor
  * @param {module:svgcanvas.SvgCanvas#event:ext-callback} arg
  * @returns {undefined}
 */