Add vue component for save button and integrate into FormMixin

js/index.js

@@ -33,6 +33,7 @@ import { isNotInVerticalViewport } from './lib/viewport'
 import DateSelector from './components/date_selector'
 import SidenavToggler from './components/sidenav_toggler'
 import KoReview from './components/forms/ko_review'
+import savebutton from './components/save_button'
 
 Vue.config.productionTip = false
 
@@ -68,6 +69,7 @@ const app = new Vue({
     EditOfficerForm,
     SidenavToggler,
     KoReview,
+    savebutton,
   },
 
   mounted: function() {