Merge branch 'sfmt' into development

Knot.files

configure.ac

src/Makefile.am

src/common/LICENSE.txt

src/common/WELL1024a.h

src/common/dSFMT-params.h

src/common/dSFMT-params521.h

src/common/dSFMT.c

src/common/dSFMT.h

src/common/prng.c

src/common/prng.h

src/knot/server/tcp-handler.c

src/knot/server/xfr-handler.c

src/knot/server/zones.c

src/libknot/util/utils.c