Added a unit test for dynamic k-max pooling.
Added a unit test for dynamic k-max pooling.

yxdunc/fbcunn,yxdunc/fbcunn,wangg12/fbcunn,Snazz2001/fbcunn,wangg12/fbcunn,wangg12/fbcunn,u20024804/fbcunn,RTBHOUSE/fbcunn,RTBHOUSE/fbcunn,linearregression/fbcunn,Moodstocks/fbcunn,Moodstocks/fbcunn,facebook/fbcunn,u20024804/fbcunn,RTBHOUSE/fbcunn,Moodstocks/fbcunn,linearregression/fbcunn,Snazz2001/fbcunn,linearregression/fbcunn,facebook/fbcunn,u20024804/fbcunn,Snazz2001/fbcunn,yxdunc/fbcunn,facebook/fbcunn