remove Vue from the global space

app/assets/javascripts/boards/boards_bundle.js

 /* eslint-disable one-var, quote-props, comma-dangle, space-before-function-paren */
-/* global Vue */
 /* global BoardService */
+import Vue from 'vue';
+import VueResource from 'vue-resource';
 import FilteredSearchBoards from './filtered_search_boards';
 import eventHub from './eventhub';
-window.Vue = require('vue');
-window.Vue.use(require('vue-resource'));
 require('./models/issue');
 require('./models/label');
 require('./models/list');
@@ -24,6 +23,8 @@ require('./components/new_list_dropdown');
 require('./components/modal/index');
 require('../vue_shared/vue_resource_interceptor');
+Vue.use(VueResource);
+
 $(() => {
   const $boardApp = document.getElementById('board-app');
   const Store = gl.issueBoards.BoardsStore;

app/assets/javascripts/boards/components/board.js

 /* eslint-disable comma-dangle, space-before-function-paren, one-var */
-/* global Vue */
 /* global Sortable */
+import Vue from 'vue';
 import boardBlankState from './board_blank_state';
 require('./board_delete');

app/assets/javascripts/boards/components/board_card.js

-/* global Vue */
 require('./issue_card_inner');
 const Store = gl.issueBoards.BoardsStore;

app/assets/javascripts/boards/components/board_delete.js

 /* eslint-disable comma-dangle, space-before-function-paren, no-alert */
-/* global Vue */
+
+import Vue from 'vue';
 (() => {
   window.gl = window.gl || {};

app/assets/javascripts/boards/components/board_list.js

 /* eslint-disable comma-dangle, space-before-function-paren, max-len */
-/* global Vue */
 /* global Sortable */
+import Vue from 'vue';
 import boardNewIssue from './board_new_issue';
 import boardCard from './board_card';

app/assets/javascripts/boards/components/board_sidebar.js

 /* eslint-disable comma-dangle, space-before-function-paren, no-new */
-/* global Vue */
 /* global IssuableContext */
 /* global MilestoneSelect */
 /* global LabelsSelect */
 /* global Sidebar */
+import Vue from 'vue';
+
 require('./sidebar/remove_issue');
 (() => {

app/assets/javascripts/boards/components/issue_card_inner.js

-/* global Vue */
+import Vue from 'vue';
 import eventHub from '../eventhub';
 (() => {

app/assets/javascripts/boards/components/modal/empty_state.js

-/* global Vue */
+import Vue from 'vue';
+
 (() => {
   const ModalStore = gl.issueBoards.ModalStore;

app/assets/javascripts/boards/components/modal/footer.js

 /* eslint-disable no-new */
-/* global Vue */
 /* global Flash */
+import Vue from 'vue';
+
 require('./lists_dropdown');
 (() => {

app/assets/javascripts/boards/components/modal/index.js

-/* global Vue */
 /* global ListIssue */
 import queryData from '../../utils/query_data';
+import Vue from 'vue';
+
 require('./header');
 require('./list');
 require('./footer');

app/assets/javascripts/boards/components/modal/list.js

-/* global Vue */
 /* global ListIssue */
 /* global bp */
+
+import Vue from 'vue';
+
 (() => {
   const ModalStore = gl.issueBoards.ModalStore;

app/assets/javascripts/boards/components/modal/lists_dropdown.js

-/* global Vue */
+import Vue from 'vue';
+
 (() => {
   const ModalStore = gl.issueBoards.ModalStore;

app/assets/javascripts/boards/components/modal/tabs.js

-/* global Vue */
+import Vue from 'vue';
+
 (() => {
   const ModalStore = gl.issueBoards.ModalStore;

app/assets/javascripts/boards/components/sidebar/remove_issue.js

 /* eslint-disable no-new */
-/* global Vue */
 /* global Flash */
+
+import Vue from 'vue';
+
 (() => {
   const Store = gl.issueBoards.BoardsStore;

app/assets/javascripts/boards/filters/due_date_filters.js

-/* global Vue */
 /* global dateFormat */
+import Vue from 'vue';
+
 Vue.filter('due-date', (value) => {
   const date = new Date(value);
   return dateFormat(date, 'mmm d, yyyy', true);

app/assets/javascripts/boards/models/issue.js

 /* eslint-disable no-unused-vars, space-before-function-paren, arrow-body-style, arrow-parens, comma-dangle, max-len */
-/* global Vue */
 /* global ListLabel */
 /* global ListMilestone */
 /* global ListUser */
+import Vue from 'vue';
+
 class ListIssue {
   constructor (obj) {
     this.globalId = obj.id;

app/assets/javascripts/boards/services/board_service.js

 /* eslint-disable space-before-function-paren, comma-dangle, no-param-reassign, camelcase, max-len, no-unused-vars */
-/* global Vue */
+
+import Vue from 'vue';
 class BoardService {
   constructor (root, bulkUpdatePath, boardId) {

app/assets/javascripts/cycle_analytics/components/stage_code_component.js

 /* eslint-disable no-param-reassign */
-/* global Vue */
+
+import Vue from 'vue';
 ((global) => {
   global.cycleAnalytics = global.cycleAnalytics || {};

app/assets/javascripts/cycle_analytics/components/stage_issue_component.js

 /* eslint-disable no-param-reassign */
-/* global Vue */
+
+import Vue from 'vue';
 ((global) => {
   global.cycleAnalytics = global.cycleAnalytics || {};

app/assets/javascripts/cycle_analytics/components/stage_production_component.js

 /* eslint-disable no-param-reassign */
-/* global Vue */
+
+import Vue from 'vue';
 ((global) => {
   global.cycleAnalytics = global.cycleAnalytics || {};