ADR-016: Update ABCI Info method for versions (#2662)

* abci: update RequestInfo for versions

* abci: update ResponseInfo for versions

* compile fix

* fix test

* software_version -> version

* comment fix

* update spec

* add test

* comments and fix test

proxy/app_conn_test.go

@@ -143,7 +143,7 @@ func TestInfo(t *testing.T) {
 	proxy := NewAppConnTest(cli)
 	t.Log("Connected")
 
-	resInfo, err := proxy.InfoSync(types.RequestInfo{Version: ""})
+	resInfo, err := proxy.InfoSync(RequestInfo)
 	if err != nil {
 		t.Errorf("Unexpected error: %v", err)
 	}

proxy/version.go

@@ -0,0 +1,15 @@
+package proxy
+
+import (
+	abci "github.com/tendermint/tendermint/abci/types"
+	"github.com/tendermint/tendermint/version"
+)
+
+// RequestInfo contains all the information for sending
+// the abci.RequestInfo message during handshake with the app.
+// It contains only compile-time version information.
+var RequestInfo = abci.RequestInfo{
+	Version:      version.Version,
+	BlockVersion: version.BlockProtocol.Uint64(),
+	P2PVersion:   version.P2PProtocol.Uint64(),
+}