Give status information about new habit added.

src/habitmgr.rs

@@ -77,12 +77,14 @@ impl HabitMgr
 				panic!("Error opening file {}:\n{}", self.habits_path.display(), e);
 			});
 
-		let habit = Habit::new(name, bad, weight);
+		let habit = Habit::new(name.clone(), bad, weight);
 		serde_json::to_writer(habits_file, &habit)
 			.unwrap_or_else(|e| {
 				panic!("Error writing to file {}:\n{}",
 							 self.habits_path.display(), e);
-			})
+			});
+
+		println!("New habit {} added.", &name);
 	}
 
 	pub fn list(&mut self, all:bool, verbose:bool)