qnd: support for creating remote folders and define the remote file name by creating a local link that has the remote file name.

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/tags/gemini_2012_10_22@92360 6b8eccd3-e8c5-4e7d-8186-e12b5326b719