The license was changed from MIT to GPL-2. This is based on the realization that the catalog data is licensed under the GPL, and the package includes a processed version of the catalog data. (See here).
Updated datasets to 5/5/2016 and added a "date_updated" attriute to tell when they were last updated
Added all_languages and only_languages arguments to gutenberg_works, allowing fine-grained control of languages. (For example, "either English or French" or "both English and French")
Changed get_gutenberg_mirror to use xml2 directly, in order to handle AppVeyor
Removed use of data() in gutenberg_works, since it slows down gutenberg_works about 2X
Various documentation, vignette, and README adjustments in response to ROpenSci feedback.
Added AppVeyor for Windows continuous integration
Added code coverage information through codecov.io and covr, along with tests to improve coverage
First version of package, including
gutenberg_download function, for downloading one or more works from Project Gutenberg using Gutenberg IDs
Datasets of Project Gutenberg metadata: gutenberg_metadata, gutenberg_subjects, gutenberg_authors
gutenberg_works function to retrieve filtered version of gutenberg_metadata
Introductory vignette including basic examples of downloading books
Unit tests for gutenberg_download and gutenberg_works
Added a NEWS.md file to track changes to the package.