New timestamp (20121231) for ch.blw.hang_steillagen and ch.blw.steil_terrassenlagen_rebbau

git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@4046 e100092c-b5e6-494f-8bdf-19c1ff2a4001
Update legends steil_terrassenlagen_rebbau and hang_steillagen

git-svn-id: https://svn.bgdi.admin.ch/mf-chsdi/trunk/chsdi@4047 e100092c-b5e6-494f-8bdf-19c1ff2a4001