FreeBSD/ports 6fa7fc5 (r448041)astro/libosmpbf Makefile, astro/merkaartor Makefile

Update devel/protobuf to 3.4.0

- Bump PORTREVISION for shlib change

Changes:        https://github.com/google/protobuf/releases
DeltaFile
+7-8devel/protobuf/pkg-plist
+3-3devel/protobuf/distinfo
+1-1audio/clementine-player/Makefile
+1-1audio/mixxx/Makefile
+1-1audio/mumble/Makefile
+1-1audio/murmur/Makefile
+1-1devel/php5-pinba/Makefile
+1-1devel/pinba_engine/Makefile
+1-1devel/protobuf-c/Makefile
+1-1devel/protobuf/Makefile
+1-1astro/libosmpbf/Makefile
+1-1astro/merkaartor/Makefile
+1-1net-p2p/namecoin/Makefile
+1-1net-p2p/zetacoin/Makefile
+1-1net/ostinato/Makefile
+1-1net/spoofer/Makefile
+1-1security/certificate-transparency/Makefile
+1-1sysutils/zbackup/Makefile
+1-1devel/tesla/Makefile
+1-1dns/dnsdist/Makefile
+1-1games/pink-pony/Makefile
+1-1games/pokerth/Makefile
+1-1graphics/caffe/Makefile
+1-1japanese/mozc-server/Makefile
+1-1net-im/ricochet/Makefile
+1-1net-p2p/litecoin/Makefile
+1-0devel/grpc/Makefile
+1-0net/mosh/Makefile
+1-0net-p2p/bitcoin/Makefile
+1-0dns/knot-resolver/Makefile
+1-0dns/powerdns/Makefile
+1-0games/cockatrice/Makefile
+40-3532 files

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