Commit Briefs
simplify host resolution on !HAVE_ASR_RUN
no functional changes intended
add cmd_move_tab and cmd_move_tab_to
bound to `C-x t m'/`g M-t' and `C-x t M'/`g M-T' respectively, names lifted after the Emacs corrispectives
add backspace (keycode 127), for the linux tty
linux ttys seems to send 127 on backspace, or at least do that under tmux. Educate telescope to treat 127 as del.