WIP: remove the old database abstraction layer

remove such classes:
- DbBase
- DbConn
- DbTextStream
- Db

while here:
- remove: TextStream, SLog, TexTextStream

winixd/locale/en

@@ -474,9 +474,6 @@ cp_preserve_attr = Preserve attributes: user, group, times
 cp_follow_symlinks = Follow symlinks
 
 
-slog_warning = Warning
-slog_error = Error
-slog_info = Info
 unknown_filesystem = Unknown filesystem
 no_such_dir = There is not such a directory
 unknown_mount_type = There is not such a mount type