[master] Fixed files missing from distcheck

    Merge branch 'trac5325' and added rules for files
    missed in asiolink:

src/lib/asiolink/Makefile.am
    +libkea_asiolink_la_SOURCES += io_acceptor.h
    +libkea_asiolink_la_SOURCES += unix_domain_socket_acceptor.h
    +libkea_asiolink_la_SOURCES += unix_domain_socket_endpoint.h

src/bin/d2/Makefile.am

@@ -24,6 +24,7 @@ CLEANFILES  = *.gcno *.gcda d2_messages.h d2_messages.cc s-messages
 man_MANS = kea-dhcp-ddns.8
 DISTCLEANFILES = $(man_MANS)
 EXTRA_DIST = $(man_MANS) kea-dhcp-ddns.xml dhcp-ddns.spec d2.dox
+EXTRA_DIST += d2_parser.yy
 
 EXTRA_DIST += images/abstract_app_classes.svg images/add_state_model.svg
 EXTRA_DIST += images/config_data_classes.svg images/config_from_file_sequence.svg

src/lib/asiolink/Makefile.am

@@ -21,6 +21,7 @@ libkea_asiolink_la_SOURCES  = asiolink.h
 libkea_asiolink_la_SOURCES += asio_wrapper.h
 libkea_asiolink_la_SOURCES += dummy_io_cb.h
 libkea_asiolink_la_SOURCES += interval_timer.cc interval_timer.h
+libkea_asiolink_la_SOURCES += io_acceptor.h
 libkea_asiolink_la_SOURCES += io_address.cc io_address.h
 libkea_asiolink_la_SOURCES += io_asio_socket.h
 libkea_asiolink_la_SOURCES += io_endpoint.cc io_endpoint.h
@@ -33,6 +34,8 @@ libkea_asiolink_la_SOURCES += tcp_socket.h
 libkea_asiolink_la_SOURCES += udp_endpoint.h
 libkea_asiolink_la_SOURCES += udp_socket.h
 libkea_asiolink_la_SOURCES += unix_domain_socket.cc unix_domain_socket.h
+libkea_asiolink_la_SOURCES += unix_domain_socket_acceptor.h
+libkea_asiolink_la_SOURCES += unix_domain_socket_endpoint.h
 
 # Note: the ordering matters: -Wno-... must follow -Wextra (defined in
 # KEA_CXXFLAGS)