MH-8100 - continue processing now working (implemented js multi-part upload)

git-svn-id: https://opencast.jira.com/svn/MH/branches/MH-8100@14781 e6edf6fb-f266-4316-afb4-e53d95876a76
MH-8100 smil service can handle clip duration greater track duration (start + duration > track.duration)


git-svn-id: https://opencast.jira.com/svn/MH/branches/MH-8100@14782 e6edf6fb-f266-4316-afb4-e53d95876a76