- remove -T from install for busybox compat (Milan P. Stanić <mps@arvanta.net>)
- also install the man page

prepare sets of utf/ascii chars for vertical and horizontal bars; remove the unsused from sp_chars; make the horizontal bars smooth too; reduce the heartbeat blink rate

fix default libs values; let CFLAGS/CPPFLAGS/LIBS be freely configurable; fix flto with egcc and NO_FLTO; only strip installed components