Some fix for access.smb and Windows OS

Some fix for access.smb and Windows
- smb.php don't work with lot of files or folders if "Windows OS". #509
- Some charset bug with smbclient and Windows. #506
- The folder "recycle_bin" is missing and not functional for access.smb.
#504
- When folders is deleted "rename" sends "false" without a visible good
reason. #504