Fix the icon font generation

This switches to the maintained `grunt-webfonts` and sets options
to fix the font generation by normalizing the icon sizes.

Makefile

@@ -289,17 +289,11 @@ tmp/.shell-env: tmp/.ekam-run $(IMAGES) shell/imports/client/changelog.html shel
 	@cd shell/ && PATH=$(METEOR_DEV_BUNDLE)/bin:$$PATH $(METEOR_DEV_BUNDLE)/bin/npm install
 	@touch tmp/.shell-env
 
-# grunt-webfont 0.4.8 does not work on Node 12. The latest version of grunt-webfont, OTOH, produces
-# a broken font file (all icons invisible and zero-width). For now we stick with the old version
-# and run it using Meteor 1.8.2's node which is old enough to run it. This means you have to
-# install Meteor 1.8.2 in addition to the latest version in order to build Sandstorm. :(
-METEOR_DEV_BUNDLE_ICONS=$(shell ./find-meteor-dev-bundle.sh METEOR@1.8.2)
-
 icons/node_modules: icons/package.json
-	cd icons && PATH=$(METEOR_DEV_BUNDLE_ICONS)/bin:$$PATH $(METEOR_DEV_BUNDLE_ICONS)/bin/npm install
+	cd icons && PATH=$(METEOR_DEV_BUNDLE)/bin:$$PATH $(METEOR_DEV_BUNDLE)/bin/npm install
 
 shell/client/styles/_icons.scss: icons/node_modules icons/*svg icons/Gruntfile.js
-	cd icons && PATH=$(METEOR_DEV_BUNDLE_ICONS)/bin:$$PATH ./node_modules/.bin/grunt
+	cd icons && PATH=$(METEOR_DEV_BUNDLE)/bin:$$PATH ./node_modules/.bin/grunt
 
 shell/imports/client/changelog.html: CHANGELOG.md
 	@mkdir -p tmp

icons/Gruntfile.js

@@ -1,5 +1,5 @@
 module.exports = function(grunt) {
-  grunt.loadNpmTasks("grunt-webfont");
+  grunt.loadNpmTasks("grunt-webfonts");
 
 
   grunt.initConfig({
@@ -13,6 +13,9 @@ module.exports = function(grunt) {
           engine: "node",
           autoHint: false,
           htmlDemo: false,
+          normalize: true,
+          fontHeight: 1001,
+          fontFilename: 'icons-{hash}',
           relativeFontPath: "/icons/",
           stylesheet: "scss",
           templateOptions: {

icons/package.json

@@ -5,6 +5,6 @@
   "devDependencies": {
     "grunt": "^1.0.4",
     "grunt-cli": "^1.3.2",
-    "grunt-webfont": "0.4.8"
+    "grunt-webfonts": "4.0.1"
   }
 }