Renamed response2 to response + fix.

Knot.files

libknot/Makefile.am

libknot/libknot.h

libknot/nameserver/name-server.c

libknot/packet/response.c

libknot/packet/response.h

libknot/util/error.c

libknot/util/error.h

src/Makefile.am

src/knot/other/error.c

src/knot/other/error.h

src/knot/server/notify.c

src/knot/server/xfr-handler.c

src/knot/server/zones.c

src/tests/libknot/libknot/response2_tests.h

src/tests/libknot/libknot/response_tests.c

src/tests/libknot/libknot/response_tests.h

src/tests/libknot/libknot/zone_tests.c

src/tests/libknot/realdata/libknot/packet_tests_realdata.c

...tests/libknot/realdata/libknot/response2_tests_realdata.h