Add DNF/CNF absorption by default
Add DNF/CNF absorption by default

cjdrake/pyeda,sschnug/pyeda,sschnug/pyeda,cjdrake/pyeda,karissa/pyeda,pombredanne/pyeda,GtTmy/pyeda,sschnug/pyeda,pombredanne/pyeda,cjdrake/pyeda,GtTmy/pyeda,karissa/pyeda,pombredanne/pyeda,GtTmy/pyeda,karissa/pyeda