nn4.def: Add reasoning behind LRN layers.
nn4.def: Add reasoning behind LRN layers.

Alexx-G/openface,francisleunggie/openface,nmabhi/Webface,Alexx-G/openface,nhzandi/openface,Alexx-G/openface,nmabhi/Webface,nhzandi/openface,cmusatyalab/openface,francisleunggie/openface,nhzandi/openface,xinfang/face-recognize,nmabhi/Webface,xinfang/face-recognize,Alexx-G/openface,cmusatyalab/openface,nmabhi/Webface,cmusatyalab/openface,xinfang/face-recognize,francisleunggie/openface