LICENSE and NOTICE from legal_ext

git-svn-id: https://svn.apache.org/repos/asf/syncope/branches/1_2_X@1621311 13f79535-47bb-0310-9956-ffa450edef68
merge from branch

git-svn-id: https://svn.apache.org/repos/asf/syncope/trunk@1621312 13f79535-47bb-0310-9956-ffa450edef68