- Breaking change: Rename config file to svgedit-config-iife.js (or for the module version, svgedit-config-es.js);

also expect one directory higher; incorporates #207 (@iuyiuy)
- Breaking change: Separate `extIconsPath` from `extPath` (not copying over icons)
- Breaking change: Don't reference `custom.css` in HTML; can instead be referenced in JavaScript through
    the config file (provided in `svgedit-config-sample-iife.js`/`svgedit-config-sample-es.js` as `svgedit-custom.css` for
    better namespacing); incorporates #207 (@iuyiuy)
- Breaking change: Remove minified jgraduate/spinbtn files (minified within Rollup routine)
- Fix: Zoom when scrolled; incorporates #169 (@AndrolGenhald), adapting for conventions; also allow avoidance when shift key pressed
- Fix: Update Atom feed reference in HTML
- Fixes related to recent commits: Some path and method name fixes needed, function order, missing methods, variable scope declaration, no need for DOMContentLoaded listeners in modules, switch back to non-default export, avoid trimming nullish, deal with mock tests, fix `math.matrixMultiply`, use jquery-svg where needed for array/SVG attributes; add babel-polyfill and defer script to imagelib; other misc. fixes
- Enhancement: Move config-sample.js out of `editor` directory
- Enhancement: For `callback`-style extensions, also provide config object; add following
   to that object: buildCanvgCallback, canvg, decode64, encode64, executeAfterLoads, getTypeMap, isChrome, ieIE, NS, text2xml
- Enhancement: Complete ES6 modules work (extensions, locales, tests), along with Babel;
    make Node build routine for converting modular source to non-modular,
    use `loadStylesheets` for modular stylehsheet defining (but parallel loading);
- Enhancement: Add `stylesheets` config for modular but parallel stylesheet loading with `@default` option for simple inclusion/exclusion of defaults (if not going with default).
- Refactoring: Clean up `svg-editor.html`: consistent indents; avoid extra lbs, avoid long lines
- Refactoring: Avoid embedded API adding inline JavaScript listener
- Refactoring: Move layers and context code to `draw.js`
- Refactoring: Move `pathActions` from `svgcanvas.js` (though preserve aliases to these methods on `canvas`) and `convertPath` from `svgutils.js` to `path.js`
- Refactoring: Move `getStrokedBBox` from `svgcanvas.js` (while keeping an alias) to `svgutils.js` (as `getStrokedBBoxDefaultVisible` to avoid conflict with existing)
- Docs: Remove "dependencies" comments in code except where summarizing role of jQuery or a non-obvious dependency
- Refactoring/Linting: Enfore `no-extra-semi` and `quote-props` rules
- Refactoring: Further avoidance of quotes on properties (as possible)
- Refactoring: Use `class` in place of functions where intended as classes
- Refactoring: Consistency and granularity in extensions imports
- Testing: Update QUnit to 2.6.1 (node_modules) and Sinon to 5.0.8 (and add sinon-test at 2.1.3) and enforce eslint-plugin-qunit linting rules; update custom extensions
- Testing: Add node-static for automating (and accessing out-of-directory contents)
- Testing: Avoid HTML attributes for styling
- Testing: Add npm `test` script
- Testing: Comment out unused jQuery SVG test
- Testing: Add test1 and svgutils_performance_test to all tests page
- Testing: Due apparently to Path having not been a formal class, the test was calling it without `new`; refactored now with sufficient mock data to take into account it is a class
- npm: Update devDeps
- npm: Add html modules and config build to test script

editor/extensions/ext-foreignobject.js

@@ -1,4 +1,4 @@
-/* globals jQuery, svgEditor, svgedit, svgCanvas */
+/* globals jQuery */
 /*
  * ext-foreignobject.js
  *
@@ -9,11 +9,13 @@
  *
  */
 
-import {NS} from './svgedit.js';
+import svgEditor from '../svg-editor.js';
 
 svgEditor.addExtension('foreignObject', function (S) {
+  const {text2xml, NS} = S;
   const $ = jQuery;
-  const Utils = svgedit.utilities,
+  const svgCanvas = svgEditor.canvas;
+  const
     // {svgcontent} = S,
     // addElem = S.addSvgElementFromJson,
     svgdoc = S.svgroot.parentNode.ownerDocument;
@@ -56,7 +58,7 @@ svgEditor.addExtension('foreignObject', function (S) {
     const elt = selElems[0];
     try {
       // convert string into XML document
-      const newDoc = Utils.text2xml('<svg xmlns="' + NS.SVG + '" xmlns:xlink="' + NS.XLINK + '">' + xmlString + '</svg>');
+      const newDoc = text2xml('<svg xmlns="' + NS.SVG + '" xmlns:xlink="' + NS.XLINK + '">' + xmlString + '</svg>');
       // run it through our sanitizer to remove anything we do not support
       S.sanitizeSvg(newDoc.documentElement);
       elt.parentNode.replaceChild(svgdoc.importNode(newDoc.documentElement.firstChild, true), elt);
@@ -91,7 +93,7 @@ svgEditor.addExtension('foreignObject', function (S) {
 
   return {
     name: 'foreignObject',
-    svgicons: svgEditor.curConfig.extPath + 'foreignobject-icons.xml',
+    svgicons: svgEditor.curConfig.extIconsPath + 'foreignobject-icons.xml',
     buttons: [{
       id: 'tool_foreign',
       type: 'mode',
@@ -194,15 +196,15 @@ svgEditor.addExtension('foreignObject', function (S) {
       if (svgCanvas.getMode() === 'foreign') {
         started = true;
         newFO = S.addSvgElementFromJson({
-          'element': 'foreignObject',
-          'attr': {
-            'x': opts.start_x,
-            'y': opts.start_y,
-            'id': S.getNextId(),
+          element: 'foreignObject',
+          attr: {
+            x: opts.start_x,
+            y: opts.start_y,
+            id: S.getNextId(),
             'font-size': 16, // cur_text.font_size,
-            'width': '48',
-            'height': '20',
-            'style': 'pointer-events:inherit'
+            width: '48',
+            height: '20',
+            style: 'pointer-events:inherit'
           }
         });
         const m = svgdoc.createElementNS(NS.MATH, 'math');