Fix tests; Update go-merkle API

tests/test_app/app.go

@@ -17,6 +17,7 @@ func StartApp(tmspApp string) *process.Process {
 	// Start the app
 	//outBuf := NewBufferCloser(nil)
 	proc, err := process.StartProcess("tmsp_app",
+		"",
 		"bash",
 		[]string{"-c", tmspApp},
 		nil,

tests/test_cli/ex1.tmsp.out

@@ -17,7 +17,7 @@
 
 > query abc
 -> code: OK
--> data: {{"index":0,"value":"abc","exists":true}}
+-> data: {Index=0 value=abc exists=true}
 
 > append_tx def=xyz
 -> code: OK
@@ -27,5 +27,5 @@
 
 > query def
 -> code: OK
--> data: {{"index":1,"value":"xyz","exists":true}}
+-> data: {Index=1 value=xyz exists=true}