Changes in version 0.1.0                        

Initial CRAN submission.

Implemented these APIs:

  - Workers:
      - worker
  - Segmentation:
      - segment
      - segment_batch
  - Speech Tagging:
      - tagging
      - tagging_batch
  - Keyword Extraction:
      - keywords
      - keywords_df
      - textrank
      - textrank_df
  - Word Frequency and N-grams:
      - freq
      - count_ngrams
      - get_tuple
  - Utilities:
      - filter_segment
      - new_user_word
      - add_word
      - get_idf

Add necessary tests, documents, a benchmark, and the website.