client.c.
(class lsh_options): Don't inherit client_options, its contents is
moved here.
(make_options): Moved initialization code from init_client_options.
(add_action, prepend_action): New functions, moved from client.c.
(make_client_session): New function, moved from client.c.
(maybe_pty): New function, moved from client.c.
(client_shell_session): Rewritten to use client_session_action.
(client_subsystem_session): Likewise.
(client_command_session): Likewise.
(main_options): Copied options from client.c.
(main_argp_children): Inherit werror_argp, not client_argp.
(parse_arg_unsigned, parse_forward_arg): Moved from client.c.
(CASE_ARG, CASE_FLAG): Updated, not member is no longer in super class.
(main_argp_parser): Moved option parsing from client.c.
(fork_lsh_transport): Updated to changes in lsh_options.
(main): Updated to changes in lsh_options. Modify inhibit_actions
flag around call to env_parse.

Rev: src/lsh.c:1.211