more options for t2t-bleu
more options for t2t-bleu

So it can be used for continous evaluation or for resuming older
evaluation from a checkpoint with a given number of steps.
It is also possible to specify the name of the events subdirectory
and tag suffix.

rsepassi/tensor2tensor,rsepassi/tensor2tensor,tensorflow/tensor2tensor,rsepassi/tensor2tensor,tensorflow/tensor2tensor,tensorflow/tensor2tensor,vthorsteinsson/tensor2tensor,vthorsteinsson/tensor2tensor,tensorflow/tensor2tensor,tensorflow/tensor2tensor,rsepassi/tensor2tensor,vthorsteinsson/tensor2tensor,vthorsteinsson/tensor2tensor