Merge pull request #2670 from ethereum/rmOldPerm

remove the old permissionss saved in localstorage

src/app/ui/persmission-handler.js

@@ -41,6 +41,13 @@ export class PermissionHandler {
 
   constructor () {
     this.permissions = this._getFromLocal()
+    this.currentVersion = 1
+    // here we remove the old permissions saved before adding 'permissionVersion'
+    // since with v1 the structure has been changed because of new engine ^0.2.0-alpha.6 changes
+    if (!localStorage.getItem('permissionVersion')) {
+      localStorage.setItem('plugins/permissions', '')
+      localStorage.setItem('permissionVersion', this.currentVersion)
+    }
   }
 
   _getFromLocal () {