import the required layer classes in the doctests themselves
import the required layer classes in the doctests themselves

MihailoIsakov/fishfish,cancan101/Lasagne,DataFighter/Lasagne-tutorial,ebattenberg/Lasagne,diogo149/Lasagne,gabortakacs/Lasagne,mheilman/Lasagne,dnuffer/Lasagne,rlkelly/Lasagne,DeanChan/Lasagne,ErnstHowie/Lasagne,takacsg84/Lasagne,kracwarlock/Lasagne,Richi91/nntools