onboarding restore feature

public/views/onboarding/welcome.html

@@ -1,5 +1,5 @@
 <ion-view>
-  <ion-content>
+  <ion-content ng-controller="welcomeController">
     <div class="text-center">
         <h2>bitpay</h2>
 
@@ -7,7 +7,7 @@
         Take control of your money - get started with bitcoin
       </span>
       <button class="button button-block button-positive" href ui-sref="onboarding.tour" translate>Get started</button>
-      <button class="button button-block button-light" translate>Restore</button>
+      <button class="button button-block button-light" ng-click="goImport()" translate>Restore</button>
     </div>
   </ion-content>
 </ion-view>

public/views/tab-import-file.html

@@ -1,6 +1,6 @@
-<ion-nav-bar class="bar-stable">
+<ion-nav-bar class="bar-stable" ng-controller="backController">
   <ion-nav-buttons side="primary">
-    <button class="button no-border" ui-sref="add.main">
+    <button class="button no-border" ng-click="importGoBack()">
       <i class="icon ion-chevron-left"></i> Back
     </button>
   </ion-nav-buttons>

public/views/tab-import-hardware.html

@@ -1,6 +1,6 @@
-<ion-nav-bar class="bar-stable">
+<ion-nav-bar class="bar-stable" ng-controller="backController">
   <ion-nav-buttons side="primary">
-    <button class="button no-border" ui-sref="add.main">
+    <button class="button no-border" ng-click="importGoBack()">
       <i class="icon ion-chevron-left"></i> Back
     </button>
   </ion-nav-buttons>

public/views/tab-import-phrase.html

@@ -1,6 +1,6 @@
-<ion-nav-bar class="bar-stable">
+<ion-nav-bar class="bar-stable" ng-controller="backController">
   <ion-nav-buttons side="primary">
-    <button class="button no-border" ui-sref="add.main">
+    <button class="button no-border" ng-click="importGoBack()">
       <i class="icon ion-chevron-left"></i> Back
     </button>
   </ion-nav-buttons>