**Acceptance criteria**

- Filter
- A filter button opens a filter panel under the toolbar
- Search fields: Name/email, Group, Status, Roles
- Show/hide search panel (hidden by Begin of the insertiondefault)End of the insertion Begin of the deletion default, status saved in session)End of the deletion
- Add new user
- Clicking the add-button opens the add-member-panel.
- Integrate the Add Screen in a add panel under the toolbar
- Showing the users already added to the projects (currently they are ignored).
- Show/hide add user panel (hidden by Begin of the insertiondefault)

End of the insertion Begin of the deletion default, status saved in session)
- Details:End of the deletion https://drive.google.com/a/openproject.com/file/d/0BwBcevECAqdvcmdUWDU5QTdXUUU/view