0.7.0

Breaking: requires an ES2020-capable JavaScript engine (Node.js 12 or newer) and the Amber packages that share that floor; the es6-promise polyfill is no longer shipped.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

package.json

@@ -2,7 +2,7 @@
   "name": "@ambers/silk",
   "title": "Stream-based mochikit-inspired in-page Web framework",
   "description": "Stream-based, mochikit-inspired framework for creating and manipulating contents of a page. For Amber Smalltalk.",
-  "version": "0.6.1",
+  "version": "0.7.0",
   "homepage": "https://lolg.it/herby/silk",
   "author": {
     "name": "Herbert Vojčík",