minor
func2 cauchy
Merge branch 'master' of https://github.com/tjbwyk/EC_VU_2014
CMA_ES，lambda=4+3ln(ln)
lamda暂定为40。
TODO：1、设定终止条件；2、每轮人口增长
minor change to sampling method
Merge branch 'master' of https://github.com/tjbwyk/EC_VU_2014
lambda=40，无终止条件，genration=limit/lambda/10
Merge branch 'master' of https://github.com/tjbwyk/EC_VU_2014
compile for submission