Texar v0.2.0

New features

• TFRecordData: A new data module for reading and processing TFRecord data, with support for, e.g., image data, feature data, etc. (#107)
• GPT-2: OpenAI pretrained language model. (#91, example)
• TopKSampleEmbeddingHelper to perform top_k random sample decoding. (baa09ff)

Feature improvements

• Refactor BERT example using TFRecordData data module.
• TransformerDecoder supports helper arguments to specify decoding strategy. (#76)

Fixes

• Fix variable collection bug in examples/seqgan. (#110)
• Fix error when beam_search_decode with output_layer=tf.identity (#77)
• Fix readthedocs compilation error (#85)