Remove bower from 15.x completely (#231)

.travis.yml

@@ -12,6 +12,4 @@ addons:
   chrome: latest
 
 install:
-  - npm install -g bower
   - npm install
-  - bower install

bower.json

@@ -1,81 +0,0 @@
-{
-  "name": "vaadin-core",
-  "authors": [
-    "Vaadin Ltd"
-  ],
-  "description": "The Vaadin core components are an evolving set of free and open source, standards-based web components.",
-  "license": "Apache-2.0",
-  "keywords": [
-    "vaadin",
-    "core",
-    "elements",
-    "web",
-    "components",
-    "webcomponents",
-    "web-components",
-    "element-collection"
-  ],
-  "main": "vaadin-core.html",
-  "ignore": [
-    "**/.*",
-    "**/node_modules",
-    "**/bower_components",
-    "**/test",
-    "**/tests",
-    "**/vaadin-core.js"
-  ],
-  "dependencies": {
-    "polymer": "polymer#2.7.0",
-    "shadycss": "shadycss#1.8.0",
-    "vaadin-accordion": "vaadin-accordion#1.0.1",
-    "vaadin-button": "vaadin-button#2.2.1",
-    "vaadin-checkbox": "vaadin-checkbox#2.2.10",
-    "vaadin-combo-box": "vaadin-combo-box#5.0.9",
-    "vaadin-context-menu": "vaadin-context-menu#4.3.15",
-    "vaadin-control-state-mixin": "vaadin-control-state-mixin#2.1.3",
-    "vaadin-date-picker": "vaadin-date-picker#4.0.5",
-    "vaadin-time-picker": "vaadin-time-picker#2.0.4",
-    "vaadin-development-mode-detector": "vaadin-development-mode-detector#2.0.4",
-    "vaadin-details": "vaadin-details#1.0.1",
-    "vaadin-dialog": "vaadin-dialog#2.2.1",
-    "vaadin-select": "vaadin-select#2.1.6",
-    "vaadin-element-mixin": "vaadin-element-mixin#2.2.0",
-    "vaadin-form-layout": "vaadin-form-layout#2.1.6",
-    "vaadin-grid": "vaadin-grid#5.5.0",
-    "vaadin-icons": "vaadin-icons#4.3.1",
-    "iron-a11y-announcer": "iron-a11y-announcer#2.1.0",
-    "iron-a11y-keys-behavior": "iron-a11y-keys-behavior#2.1.1",
-    "iron-fit-behavior": "iron-fit-behavior#2.2.1",
-    "iron-flex-layout": "iron-flex-layout#2.0.3",
-    "iron-icon": "iron-icon#2.1.0",
-    "iron-iconset-svg": "iron-iconset-svg#2.2.1",
-    "iron-list": "iron-list#2.0.19",
-    "iron-media-query": "iron-media-query#2.1.0",
-    "iron-meta": "iron-meta#2.1.1",
-    "iron-overlay-behavior": "iron-overlay-behavior#2.3.4",
-    "iron-resizable-behavior": "iron-resizable-behavior#2.1.1",
-    "iron-scroll-target-behavior": "iron-scroll-target-behavior#2.1.1",
-    "vaadin-item": "vaadin-item#2.1.1",
-    "vaadin-list-box": "vaadin-list-box#1.2.0",
-    "vaadin-list-mixin": "vaadin-list-mixin#2.3.1",
-    "vaadin-lumo-styles": "vaadin-lumo-styles#1.5.0",
-    "vaadin-material-styles": "vaadin-material-styles#1.2.3",
-    "vaadin-menu-bar": "vaadin-menu-bar#1.0.3",
-    "vaadin-notification": "vaadin-notification#1.4.0",
-    "vaadin-ordered-layout": "vaadin-ordered-layout#1.1.0",
-    "vaadin-overlay": "vaadin-overlay#3.2.16",
-    "vaadin-progress-bar": "vaadin-progress-bar#1.1.2",
-    "vaadin-radio-button": "vaadin-radio-button#1.2.3",
-    "vaadin-split-layout": "vaadin-split-layout#4.1.1",
-    "vaadin-tabs": "vaadin-tabs#3.0.5",
-    "vaadin-text-field": "vaadin-text-field#2.5.3",
-    "vaadin-themable-mixin": "vaadin-themable-mixin#1.5.2",
-    "vaadin-upload": "vaadin-upload#4.2.2",
-    "vaadin-custom-field": "vaadin-custom-field#1.0.9",
-    "vaadin-app-layout": "vaadin-app-layout#2.0.4",
-    "vaadin-login": "vaadin-login#1.0.1",
-    "webcomponentsjs": "webcomponentsjs#1.2.6",
-    "vaadin-usage-statistics": "vaadin-usage-statistics#2.1.0",
-    "vaadin-router": "vaadin-router#1.5.2"
-  }
-}

vaadin-core.html

@@ -1,41 +0,0 @@
-<link rel="import" href="../vaadin-accordion/vaadin-accordion.html">
-<link rel="import" href="../vaadin-app-layout/vaadin-app-layout.html">
-<link rel="import" href="../vaadin-button/vaadin-button.html">
-<link rel="import" href="../vaadin-checkbox/vaadin-checkbox.html">
-<link rel="import" href="../vaadin-checkbox/vaadin-checkbox-group.html">
-<link rel="import" href="../vaadin-combo-box/vaadin-combo-box.html">
-<link rel="import" href="../vaadin-context-menu/vaadin-context-menu.html">
-<link rel="import" href="../vaadin-custom-field/vaadin-custom-field.html">
-<link rel="import" href="../vaadin-date-picker/vaadin-date-picker.html">
-<link rel="import" href="../vaadin-details/vaadin-details.html">
-<link rel="import" href="../vaadin-time-picker/vaadin-time-picker.html">
-<link rel="import" href="../vaadin-dialog/vaadin-dialog.html">
-<link rel="import" href="../vaadin-select/vaadin-select.html">
-<link rel="import" href="../vaadin-form-layout/vaadin-form-layout.html">
-<link rel="import" href="../vaadin-form-layout/vaadin-form-item.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-column-group.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-column.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-filter.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-selection-column.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-sorter.html">
-<link rel="import" href="../vaadin-grid/vaadin-grid-tree-toggle.html">
-<link rel="import" href="../vaadin-icons/vaadin-icons.html">
-<link rel="import" href="../vaadin-item/vaadin-item.html">
-<link rel="import" href="../vaadin-list-box/vaadin-list-box.html">
-<link rel="import" href="../vaadin-login/vaadin-login-overlay.html">
-<link rel="import" href="../vaadin-notification/vaadin-notification.html">
-<link rel="import" href="../vaadin-ordered-layout/vaadin-horizontal-layout.html">
-<link rel="import" href="../vaadin-ordered-layout/vaadin-vertical-layout.html">
-<link rel="import" href="../vaadin-progress-bar/vaadin-progress-bar.html">
-<link rel="import" href="../vaadin-radio-button/vaadin-radio-button.html">
-<link rel="import" href="../vaadin-radio-button/vaadin-radio-group.html">
-<link rel="import" href="../vaadin-split-layout/vaadin-split-layout.html">
-<link rel="import" href="../vaadin-tabs/vaadin-tabs.html">
-<link rel="import" href="../vaadin-tabs/vaadin-tab.html">
-<link rel="import" href="../vaadin-text-field/vaadin-text-field.html">
-<link rel="import" href="../vaadin-text-field/vaadin-password-field.html">
-<link rel="import" href="../vaadin-text-field/vaadin-text-area.html">
-<link rel="import" href="../vaadin-text-field/vaadin-email-field.html">
-<link rel="import" href="../vaadin-text-field/vaadin-number-field.html">
-<link rel="import" href="../vaadin-upload/vaadin-upload.html">