include credential_*.h in dist

src/credential/Makefile.am

@@ -70,7 +70,9 @@ gnunet_service_credential_LDADD = \
 libgnunetcredential_la_SOURCES = \
  credential_api.c credential.h \
  credential_serialization.c \
- credential_misc.c
+ credential_serialization.h \
+ credential_misc.c \
+ credential_misc.h
 libgnunetcredential_la_LIBADD = \
  $(top_builddir)/src/util/libgnunetutil.la $(XLIB)
 libgnunetcredential_la_LDFLAGS = \