[Golist] Go 0.5.2 branch notes

[Moses Gunesch]

Hey I haven't tested this code yet so I committed it as a branch. It's  
under branches > goasap0.5.2.

Some things I've done so far:
(Haven't had time to look into Repeater yet.)

- Change return types on all add and remove child methods to return  
the item, not an int.

- Working on eliminating complexity surrounding SequenceCA's need to  
create an already-running group. Simplifies code in  
PlayableGroup.addChild by removing the 'adoptChildState' parameter and  
adding a small additional public method called  
addPlayingChildAndStart().

- Started a new advance type called ImmediateAdvance that simply  
advances during the start() call. Gil, give it a try and let me know  
if it works!

-moses