qnd: create default only on first run

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@94898 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: Remove Alert from the model, and remove unnecessary action - setMetadata

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@94899 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
qnd: Removed PS2 serveFileAction.

git-svn-id: svn+ssh://kelev.kaltura.com/usr/local/kalsource/backend/server/trunk/core@94900 6b8eccd3-e8c5-4e7d-8186-e12b5326b719
adding empty directories
adding empty directories