RFC: remove lash?

[Denis Vlasenko]

Hi folks,

I was working on busybox's shells a bit lately.

Current situation is as follows:

- ash is closest to be a replacement to bash, but it is the most
  complex and big shell in busybox.
- msh also aims to be reasonable feature complete.
- hush and lash are "small" shells with many features absent,
  and they also seem to have fair share of bugs.

To have four shells in busybox is too much IMO.

Since hush is based on lash, and seems to be a bit more
advanced than lash, I propose removing lash altogether.

For a few releases we can keep "lash" applet which\
prints "DEPRECATED!" warning and starts hush_main.

What do you think people? Especially lash users?
--
vda