userportal,webadmin: refresh wraps.

- GWT can't determine the width of margins, and thus the
  calculations will be wrong when you use them in an
  action panel. Switched margins to padding which GWT does
  detect properly.

Change-Id: I9f641172099df224f7a4fda322449d02e842068c
Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1123277
Signed-off-by: Alexander Wels <awels@redhat.com>