When configuring DFS with NFS, eZ Platform creating incorrect dirs in NFS path
Steps to reproduce
1. Install clean eZ Platform v3
2. Configure only DFS with dfs_nfs_path
3. Login to BO
4. Add new image in Media
the newly added image is not displayed and the path in NFS is created as follows: dfs_nfs_path/$var_dir$/$storage_dir$/images/....
The image is displayed correctly and the path in NFS is correctly converted and created