Merge pull request #15 from davglass/readline-osx

On OSX revert back to terminal hack to avoid a readline bug

lib/node-progress.js

@@ -47,6 +47,13 @@ function ProgressBar(fmt, options) {
     output: options.stream || process.stdout
   });
   this.rl.setPrompt('', 0);
+  this.rl.clearLine = function() {
+      if (process.platform === 'darwin') {
+        this.output.write('\r');
+      } else {
+        this.write(null, {ctrl: true, name: 'u'});
+      }
+  };
 
   options = options || {};
   if ('string' != typeof fmt) throw new Error('format required');
@@ -83,7 +90,7 @@ ProgressBar.prototype.tick = function(len, tokens){
   // progress complete
   if ((this.curr += len) > this.total) {
     this.complete = true;
-    //this.rl.write(null, {ctrl: true, name: 'u'});
+    this.rl.clearLine();
     this.rl.resume();
     this.rl.close();
     return;
@@ -110,7 +117,7 @@ ProgressBar.prototype.tick = function(len, tokens){
       str = str.replace(':' + key, tokens[key]);
     }
   }
-
-  this.rl.write(null, {ctrl: true, name: 'u'});
+  
+  this.rl.clearLine();
   this.rl.write(str);
 };