[HarfBuzz] Wich version works?

[Alfabety]

Hi, 
I'm playing around hb-view for a while.
In harfbuzz v.0.6 I have no problems with setting "salt" feature.
I updated to: 
hb-view (harfbuzz) 0.7.0
Available shapers: ot,fallback 
by git://anongit.freedesktop.org/harfbuzz. 
But now --help--features=TODO and I have no idea - did 'calt', 'liga' don't work anymore? Or I don't know how to set them.

best
Łukasz Dziedzic