The robot's actual behavior/tasks?

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I've had a look at smach. It's promising when it comes to defining what the robot shall actually do on a high abstraction level. But it seems to me that smach has kind of fallen asleep. Is it actively maintained or even developed further? The last commit on GitHub was made on 4th of August, 2013. There are several open issues. And it seems that smach_viewer isn't working with ROS Hydro which is the greatest pity since I could really make good use of a visual representation of what I've been doing (if not for documentation purposes).

Are there any alternatives to program behaviors and activities as comfortable as smach that are actively maintained, alive and kicking?

Thanks