Added comment about the GPU needed.
Merge pull request #18 from nouiz/comment

Added comment about the GPU needed.
Fix off-by-one error in numbering of epochs in most tutorials

The first epoch consisted in only one minibatch, and no validation
phase was used. For the following epochs, the validation phase happened
just before the last minibatch of the epoch.
Merge pull request #19 from lisa-lab/fix_iter_index

[WIP] Fix off-by-one error in numbering of epochs in most tutorials
Also report best_iter + 1 as best iteration
Fix output of modified script.
Revert change that should not have been committed
Merge pull request #20 from lisa-lab/fix_iter_index

Further fixes following gh-19
Change reported script outputs after changing scripts
Remove trailing whitespace
Merge pull request #21 from lisa-lab/fix_iter_index

Change reported script outputs after changing scripts