updating dependencies to a released (not rc) version
added server side functions to set autohide behaviour
adding another Button to the test UI to test and demonstrate the auto hide behaviour
using auto hide feature of gwt PopupPanel instead of NativePreviewHandler and respecting new popupAutoHide state variable
Merge branch 'stayOpen' into 2.0
setting z-index of the current windows plus one or 1000. So it is possible to open a modal window the popoup