first reasonable full implementation of dummytask

I have more or less finish the skeleton of dummy task. We need to figure out way how this can be tested. 
random choice.
2014年11月12日 下午4:10于 "Hongchao Deng" <notifications@github.com>写道：

> In dummy_task.go:
>
> >  	t.epochID = epochID
> > -	t.framework.FlagChildMetaReady(nil)
> > +	for i := 0; i < 10; i++ {
> > +		t.param.data[i] = float32(t.epochID)
>
> Is there any reason to use epoch as initial parameters? Or just randomly
> selected?
>
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> <https://github.com/go-distributed/meritop/pull/17/files#r20263545>.
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