Bump ember-cli from 3.15.2 to 3.16.0 (#355)

* Bump ember-cli from 3.15.2 to 3.16.0

Bumps [ember-cli](https://github.com/ember-cli/ember-cli) from 3.15.2 to 3.16.0.
- [Release notes](https://github.com/ember-cli/ember-cli/releases)
- [Changelog](https://github.com/ember-cli/ember-cli/blob/master/CHANGELOG.md)
- [Commits](ember-cli/ember-cli@v3.15.2...v3.16.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

* Blueprint updates for ember-cli@3.16.0

Co-authored-by: Kevin Pfefferle <kevin@pfefferle.co>

Author: dependabot-preview[bot]

.circleci/config.yml

@@ -37,25 +37,25 @@ jobs:
           name: Lint JS
           command: yarn run lint:js
 
-  test_lts_3_8:
+  test_lts_3_12:
     <<: *defaults
     steps:
       - attach_workspace:
           at: .
       - run: echo 'export PATH=~/ember-octicons/node_modules/.bin:$PATH' >> $BASH_ENV
       - run:
           name: Run Tests
-          command: ember try:one ember-lts-3.8 --skip-cleanup=true
+          command: ember try:one ember-lts-3.12 --skip-cleanup=true
 
-  test_lts_3_12:
+  test_lts_3_16:
     <<: *defaults
     steps:
       - attach_workspace:
           at: .
       - run: echo 'export PATH=~/ember-octicons/node_modules/.bin:$PATH' >> $BASH_ENV
       - run:
           name: Run Tests
-          command: ember try:one ember-lts-3.12 --skip-cleanup=true
+          command: ember try:one ember-lts-3.16 --skip-cleanup=true
 
   test_release:
     <<: *defaults
@@ -108,10 +108,10 @@ workflows:
       - lint_js:
           requires:
             - install_dependencies
-      - test_lts_3_8:
+      - test_lts_3_12:
           requires:
             - install_dependencies
-      - test_lts_3_12:
+      - test_lts_3_16:
           requires:
             - install_dependencies
       - test_release:

.editorconfig

@@ -4,7 +4,6 @@
 
 root = true
 
-
 [*]
 end_of_line = lf
 charset = utf-8

config/ember-try.js

@@ -7,18 +7,18 @@ module.exports = async function() {
     useYarn: true,
     scenarios: [
       {
-        name: 'ember-lts-3.8',
+        name: 'ember-lts-3.12',
         npm: {
           devDependencies: {
-            'ember-source': '~3.8.0'
+            'ember-source': '~3.12.0'
           }
         }
       },
       {
-        name: 'ember-lts-3.12',
+        name: 'ember-lts-3.16',
         npm: {
           devDependencies: {
-            'ember-source': '~3.12.0'
+            'ember-source': '~3.16.0'
           }
         }
       },

package.json

@@ -15,7 +15,7 @@
     "test": "tests"
   },
   "scripts": {
-    "build": "ember build",
+    "build": "ember build --environment=production",
     "lint:hbs": "ember-template-lint .",
     "lint:js": "eslint .",
     "start": "ember serve",
@@ -25,24 +25,25 @@
   "dependencies": {
     "broccoli-funnel": "^3.0.1",
     "broccoli-merge-trees": "^4.1.0",
-    "ember-cli-babel": "^7.13.0",
-    "ember-cli-htmlbars": "^4.2.0",
+    "ember-cli-babel": "^7.17.2",
+    "ember-cli-htmlbars": "^4.2.2",
     "glob": "^7.1.2"
   },
   "peerDependencies": {
     "octicons": "^8.0.0"
   },
   "devDependencies": {
-    "@ember/optional-features": "^1.1.0",
+    "@ember/optional-features": "^1.3.0",
     "@glimmer/component": "^1.0.0",
+    "@glimmer/tracking": "^1.0.0",
     "babel-eslint": "^10.0.3",
     "broccoli-asset-rev": "^3.0.0",
     "ember-auto-import": "^1.5.3",
-    "ember-cli": "~3.15.1",
+    "ember-cli": "~3.16.0",
     "ember-cli-dependency-checker": "^3.2.0",
     "ember-cli-deprecation-workflow": "^1.0.0",
     "ember-cli-eslint": "^5.1.0",
-    "ember-cli-inject-live-reload": "^2.0.1",
+    "ember-cli-inject-live-reload": "^2.0.2",
     "ember-cli-release": "^1.0.0-beta.2",
     "ember-cli-shims": "^1.2.0",
     "ember-cli-sri": "^2.1.1",
@@ -58,7 +59,7 @@
     "ember-source-channel-url": "^2.0.1",
     "ember-svg-jar": "^2.1.0",
     "ember-try": "^1.4.0",
-    "eslint-plugin-ember": "^7.7.1",
+    "eslint-plugin-ember": "^7.7.2",
     "eslint-plugin-node": "^11.0.0",
     "loader.js": "^4.7.0",
     "octicons": "^8.4.2",

testem.js

@@ -7,6 +7,7 @@ module.exports = {
   launch_in_dev: [
     'Chrome'
   ],
+  browser_start_timeout: 120,
   browser_args: {
     Chrome: {
       ci: [