refactor: rename DTree to DValue

site/examples/uce-starter/views/account/login.uce

@@ -4,7 +4,7 @@ COMPONENT(Request& context)
 {
 	context.call["app"]["page_title"] = "Login";
 	StarterUser users(context);
-	DTree result;
+	DValue result;
 	if(context.params["REQUEST_METHOD"] == "POST")
 	{
 		result = users.sign_in(context.post["email"], context.post["password"]);

site/examples/uce-starter/views/account/profile.uce

@@ -9,9 +9,9 @@ COMPONENT(Request& context)
 		return;
 	}
 	context.call["app"]["page_title"] = "Profile";
-	DTree user = users.current();
+	DValue user = users.current();
 	String roles = "";
-	user["roles"].each([&](DTree role, String key) {
+	user["roles"].each([&](DValue role, String key) {
 		if(roles != "")
 			roles += ", ";
 		roles += role.to_string();

site/examples/uce-starter/views/account/register.uce

@@ -4,7 +4,7 @@ COMPONENT(Request& context)
 {
 	context.call["app"]["page_title"] = "Register";
 	StarterUser users(context);
-	DTree result;
+	DValue result;
 	if(context.params["REQUEST_METHOD"] == "POST")
 		result = users.create(context.post["email"], context.post["password"]);