Update ember-cli and dependencies

Author: btecu

.eslintrc.js

@@ -36,8 +36,7 @@ module.exports = {
         'tests/dummy/app/**'
       ],
       parserOptions: {
-        sourceType: 'script',
-        ecmaVersion: 2015
+        sourceType: 'script'
       },
       env: {
         browser: false,

.travis.yml

@@ -49,8 +49,8 @@ jobs:
     # we recommend new addons test the current and previous LTS
     # as well as latest stable release (bonus points to beta/canary)
     - stage: "Additional Tests"
-      env: EMBER_TRY_SCENARIO=ember-lts-2.18
-    - env: EMBER_TRY_SCENARIO=ember-lts-3.4
+      env: EMBER_TRY_SCENARIO=ember-lts-3.4
+    - env: EMBER_TRY_SCENARIO=ember-lts-3.8
     - env: EMBER_TRY_SCENARIO=ember-release
     - env: EMBER_TRY_SCENARIO=ember-beta
     - env: EMBER_TRY_SCENARIO=ember-canary

blueprints/ember-cli-bootstrap-datetimepicker/index.js

@@ -8,7 +8,7 @@ module.exports = {
     return this.addPackagesToProject([
       { name: 'ember-cli-moment-shim', target: '3.7.1' },
       { name: 'moment', target: '^2.24.0' },
-      { name: 'moment-timezone', target: '^0.5.25' }
+      { name: 'moment-timezone', target: '^0.5.26' }
     ]);
   }
 };

config/ember-try.js

@@ -2,83 +2,72 @@
 
 const getChannelURL = require('ember-source-channel-url');
 
-module.exports = function() {
-  return Promise.all([
-    getChannelURL('release'),
-    getChannelURL('beta'),
-    getChannelURL('canary')
-  ]).then((urls) => {
-    return {
-      useYarn: true,
-      scenarios: [
-        {
-          name: 'ember-lts-2.18',
-          env: {
-            EMBER_OPTIONAL_FEATURES: JSON.stringify({ 'jquery-integration': true })
-          },
-          npm: {
-            devDependencies: {
-              '@ember/jquery': '^0.5.1',
-              'ember-source': '~2.18.0'
-            }
+module.exports = async function() {
+  return {
+    scenarios: [
+      {
+        name: 'ember-lts-3.4',
+        npm: {
+          devDependencies: {
+            'ember-source': '~3.4.0'
           }
-        },
-        {
-          name: 'ember-lts-3.4',
-          npm: {
-            devDependencies: {
-              'ember-source': '~3.4.0'
-            }
-          }
-        },
-        {
-          name: 'ember-release',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[0]
-            }
+        }
+      },
+      {
+        name: 'ember-lts-3.8',
+        npm: {
+          devDependencies: {
+            'ember-source': '~3.8.0'
           }
-        },
-        {
-          name: 'ember-beta',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[1]
-            }
+        }
+      },
+      {
+        name: 'ember-release',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('release')
           }
-        },
-        {
-          name: 'ember-canary',
-          npm: {
-            devDependencies: {
-              'ember-source': urls[2]
-            }
+        }
+      },
+      {
+        name: 'ember-beta',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('beta')
           }
-        },
-        // The default `.travis.yml` runs this scenario via `yarn test`,
-        // not via `ember try`. It's still included here so that running
-        // `ember try:each` manually or from a customized CI config will run it
-        // along with all the other scenarios.
-        {
-          name: 'ember-default',
-          npm: {
-            devDependencies: {}
+        }
+      },
+      {
+        name: 'ember-canary',
+        npm: {
+          devDependencies: {
+            'ember-source': await getChannelURL('canary')
           }
+        }
+      },
+      // The default `.travis.yml` runs this scenario via `npm test`,
+      // not via `ember try`. It's still included here so that running
+      // `ember try:each` manually or from a customized CI config will run it
+      // along with all the other scenarios.
+      {
+        name: 'ember-default',
+        npm: {
+          devDependencies: {}
+        }
+      },
+      {
+        name: 'ember-default-with-jquery',
+        env: {
+          EMBER_OPTIONAL_FEATURES: JSON.stringify({
+            'jquery-integration': true
+          })
         },
-        {
-          name: 'ember-default-with-jquery',
-          env: {
-            EMBER_OPTIONAL_FEATURES: JSON.stringify({
-              'jquery-integration': true
-            })
-          },
-          npm: {
-            devDependencies: {
-              '@ember/jquery': '^0.5.1'
-            }
+        npm: {
+          devDependencies: {
+            '@ember/jquery': '^0.5.1'
           }
         }
-      ]
-    };
-  });
+      }
+    ]
+  };
 };

package.json

@@ -33,14 +33,14 @@
   },
   "dependencies": {
     "btecu-eonasdan-bootstrap-datetimepicker": "4.17.50",
-    "ember-cli-babel": "^7.7.3",
-    "ember-cli-htmlbars": "^3.0.1"
+    "ember-cli-babel": "^7.8.0",
+    "ember-cli-htmlbars": "^3.1.0"
   },
   "devDependencies": {
     "@ember/jquery": "^0.6.1",
     "@ember/optional-features": "^0.7.0",
     "broccoli-asset-rev": "^3.0.0",
-    "ember-cli": "~3.10.1",
+    "ember-cli": "~3.11.0",
     "ember-cli-dependency-checker": "^3.2.0",
     "ember-cli-eslint": "^5.1.0",
     "ember-cli-htmlbars-inline-precompile": "^2.1.0",
@@ -54,18 +54,18 @@
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-qunit": "4.4.1",
     "ember-resolver": "^5.1.3",
-    "ember-source": "~3.10.1",
+    "ember-source": "~3.11.1",
     "ember-source-channel-url": "^2.0.1",
     "ember-try": "^1.2.1",
-    "eslint-plugin-ember": "^6.5.1",
+    "eslint-plugin-ember": "^6.7.1",
     "eslint-plugin-node": "^9.1.0",
     "loader.js": "^4.7.0",
     "moment": "^2.24.0",
-    "moment-timezone": "^0.5.25",
+    "moment-timezone": "^0.5.26",
     "qunit-dom": "^0.9.0"
   },
   "engines": {
-    "node": "8.* || >= 10.*"
+    "node": "8.* || 10.* || 12.*"
   },
   "ember-addon": {
     "after": [