Fixed Precompiled TF Binaries and Added Some New Features

Fixed the precompiled TensorFlow binaries, and also added the following
new features:

• io module:
  • Added support for a new TFRecordWriter.
• ops module:
  • Added a new ops namespace, sparse, that includes all sparse ops.
  • Added support for sparse.reorder and sparse.merge.
  • Added support for parsing TF records.
  • data module:
    • Added support for Dataset.shuffleAndRepeat.
  • optimizers module:
    • Added support for the Adafactor optimizer.
    • Renamed SqrtDecay to RSqrtDecay which is more appropriate.
  • math module:
    • Added support for batchGather.
    • Added support for bitwise ops.
  • rnn module:
    • Simplified the attention mechanisms functionality so that it is
      now not required to tile memory tensors for beam search outside
      the beam search decoder.
  • Moved the seq2seq module to a separate repository (that of
    Symphony Machine Translation).