allow user to create an access token to access stf api from user settings tab.

lib/db/api.js

@@ -308,4 +308,22 @@ dbapi.loadDevice = function(serial) {
   return db.run(r.table('devices').get(serial))
 }
 
+dbapi.saveUserAccessToken = function(email, token) {
+  return db.run(r.table('users').get(email).update({
+    accessTokens: r.row('accessTokens').default([]).append({
+      title: token.title
+    , tokenId: token.tokenId
+    , jwt: token.jwt
+    })
+  }))
+}
+
+dbapi.removeUserAccessToken = function(email, title) {
+  return db.run(r.table('users').get(email).update({
+    accessTokens: r.row('accessTokens').default([]).filter(function(token) {
+      return token('title').ne(title)
+    })
+  }))
+}
+
 module.exports = dbapi