MH-8100 fixed: Wrong times and weird time displays in the editor

git-svn-id: http://opencast.jira.com/svn/MH/branches/MH-8100@13725 e6edf6fb-f266-4316-afb4-e53d95876a76
MH-8100 fixed: Wrong times and weird time displays in the editor #2

git-svn-id: http://opencast.jira.com/svn/MH/branches/MH-8100@13726 e6edf6fb-f266-4316-afb4-e53d95876a76