fix crackle on transport jump
set_position() calls fade_around() using a reference to
renamed _set_position(), which actually does the setpos
remove obsolete code
create eager mode
add $mode methods eager() preview() doodle()
add command 'eager on|off'
add config option eager: 1|0
initialize_project_data(): set $mode->{preview} mode from $config->{initial_mode}
supress warnings
eager command accepts on|off|1|0
"preview" works with eager for Raf as "song_start"
Space start/stop is disabled during "gig_live" .
Eager triggers start only in doodle and preview.