SoupRequester: compatibility fix
SoupRequester: compatibility fix

Epiphany was registering its "ephy-about" handler by directly calling
soup_session_feature_add_feature() on the SoupRequester, rather than
calling soup_session_add_feature_by_type() on the session. Fix it so
that will still work.

Distrotech/libsoup,Distrotech/libsoup,Distrotech/libsoup,fanc999/libsoup,jwendell/libsoup,jwendell/libsoup,fanc999/libsoup,jwendell/libsoup,fanc999/libsoup,fanc999/libsoup,fanc999/libsoup,Distrotech/libsoup,jwendell/libsoup,jwendell/libsoup,Distrotech/libsoup