1.8
  - Add support for HOCR output (#20)
  - Remove 'script' and 'orientation' attributes in output (doesn't work in Tesseract 4)

1.7 (internal)
  - Add support upcoming Tesseract 4 (compiler fix + separate tessdata dir)
  - Configure script now explicitly tests for CXX11 (required by Tesseract 4)

1.6
  - Windows: update libtesseract to 3.05.01
  - tesseract_download now uses 3.04 tree (instead of 4.00) as suggested in readme
  - For static packags on Win/Mac, languages stored in: rappdirs::user_data_dir('tesseract')
  - Use 'png' instead of 'tiff' to read magick images
  - Compile with $(C_VISIBILITY) to hide internal symbols (requires Rcpp 0.12.12)
  - Use Rcpp symbol registration

1.4
  - Run engine finalizer on R exit (requires Rcpp 0.12.10)
  - Move autobrew script to separate repository
  - Add symbol registration

1.3
  - tesseract() gains an 'options' parameter for setting engine variables
  - New tessseract_download() function for installing training data on Win/Mac
  - Initiate default tesseract engine onAttach() to fail for missing training data
  - Add support for ocr() on magick images

1.2
  - Try to fix build for CRAN OS-X, again.

1.1
  - Try to fix build for CRAN OS-X build server
  - Show 'loaded' and 'available' languages in print.tesseract()

1.0
  - Initial CRAN release
