has_duration 的所有版本

0.0.6 May 08, 2013 (6.0 KB)
0.0.5 May 08, 2013 (6.0 KB)
0.0.4 May 06, 2013 (6.0 KB)
0.0.3 October 15, 2012 (5.5 KB)
0.0.2 September 18, 2012 (5.5 KB)
0.0.1 September 16, 2012 (5.5 KB)