rails/rails — pull request #4316 by wrozka (2012-01-05 10:53:10+00:00)
Title: Time advance nsec bug

#advance method of Time is not coping nsec fraction of time. It results in strange behaviour like:

```ruby
Date.today.end_of_day != Date.today.end_of_day + 0.days
```

This pull requests fixes that.