Make sure repl is grabbing namespace from actual current namespace

Author: Tko1

src/repl.rs

@@ -35,7 +35,7 @@ impl Repl {
  let mut stdin_reader = stdin.lock();
 
  loop {
- print!("user=> ");
+ print!("{}=> ",self.environment.get_current_namespace_name());
  let _ = io::stdout().flush();
 
  // Read