Fixed implied dt-end for non-value-class mf2. This makes @barnabywalters test "testImpliedDTEndUsingNonValueClassDTStart" pass.
Fixed implied dt-end for non-value-class mf2.
This makes @barnabywalters test "testImpliedDTEndUsingNonValueClassDTStart" pass.

gRegorLove/php-mf2,gRegorLove/php-mf2