2017-3-6

Date	People	Last Week	This Week
2017/1/3	Yang Feng
	Jiyuan Zhang
	Andi Zhang	added source masks in attention_decoder where calculates attention and in gru_cell where calculates new states. found the attribute sentence_length, perhaps it works better than my code
	Shiyue Zhang	figured out the problem of attention: the initial value of V should be around 0 tested different modification, such as add mask, init b with 0. Compared the results, and concluded only change the initial value of V is the best.	try to get right attention on memory
	Peilun Xiao