add missing code during license change

browser/app/js/alert/actions.js

@@ -17,3 +17,33 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+export const SET = "alert/SET"
+export const CLEAR = "alert/CLEAR"
+
+export let alertId = 0
+
+export const set = alert => {
+  const id = alertId++
+  return (dispatch, getState) => {
+    if (alert.type !== "danger" || alert.autoClear) {
+      setTimeout(() => {
+        dispatch({
+          type: CLEAR,
+          alert: {
+            id
+          }
+        })
+      }, 5000)
+    }
+    dispatch({
+      type: SET,
+      alert: Object.assign({}, alert, {
+        id
+      })
+    })
+  }
+}
+
+export const clear = () => {
+  return { type: CLEAR }
+}