fix(merkledag/pb) rename proto package -> merkledag_pb

merkledag/internal/pb/Makefile

+PB = $(wildcard *.proto)
+GO = $(PB:.proto=.pb.go)
 
-all: node.pb.go
+all: $(GO)
 
-node.pb.go: node.proto
-	protoc --gogo_out=. --proto_path=../../../../:/usr/local/opt/protobuf/include:. $<
+%.pb.go: %.proto
+		protoc --gogo_out=. --proto_path=../../../../../../:/usr/local/opt/protobuf/include:. $<
 
 clean:
-	rm node.pb.go
+		rm -f *.pb.go
+		rm -f *.go

merkledag/internal/pb/node.proto → merkledag/internal/pb/merkledag.proto

-package merkledag;
+package merkledag.pb;
 
 import "code.google.com/p/gogoprotobuf/gogoproto/gogo.proto";
 

merkledag/internal/pb/nodepb_test.go → merkledag/internal/pb/merkledagpb_test.go

 // Code generated by protoc-gen-gogo.
-// source: node.proto
+// source: merkledag.proto
 // DO NOT EDIT!
 
 /*
-Package merkledag is a generated protocol buffer package.
+Package merkledag_pb is a generated protocol buffer package.
 
 It is generated from these files:
-	node.proto
+	merkledag.proto
 
 It has these top-level messages:
 	PBLink
 	PBNode
 */
-package merkledag
+package merkledag_pb
 
 import testing "testing"
 import math_rand "math/rand"