Fix snapshot retrieval for new nodes by retrieving it before joining the cluster.

conn/node.go

dgraph/cmd/bulk/progress.go

dgraph/cmd/zero/raft.go

posting/mvcc.go

protos/intern/internal.pb.go

protos/internal.proto

systest/cluster_setup.go

systest/cluster_test.go

systest/loader_test.go

vendor/github.com/dustin/go-humanize/LICENSE

vendor/github.com/dustin/go-humanize/README.markdown

vendor/github.com/dustin/go-humanize/big.go

vendor/github.com/dustin/go-humanize/bigbytes.go

vendor/github.com/dustin/go-humanize/bytes.go

vendor/github.com/dustin/go-humanize/comma.go

vendor/github.com/dustin/go-humanize/commaf.go

vendor/github.com/dustin/go-humanize/ftoa.go

vendor/github.com/dustin/go-humanize/humanize.go

vendor/github.com/dustin/go-humanize/number.go

vendor/github.com/dustin/go-humanize/ordinals.go