Models never saved if --no_earlystopping is used

[thvasilo]

With the current code structure, evaluation and saving of the models only happens when the --no_earlystopping is not provided.

Ideally we would like some form of evaluation to happen even when not using LM (not sure if possible) and perhaps saving the models at the end of each epoch regardless of the arguments provided.

Since this should be a simple change, let me know if you are currently open to accepting PRs.

[jakezhaojb]

we are open to accepting PRs! Please do 👍
thank you.