2020-05-18  1.0:  First stable release
                  
                  Major changes:
                  - Restrictions on input file names: files with whitespace
                    or non-ascii characters in the name are refused, as well
                    as files with any of the following document format
                    extensions: doc, docx, xls, xlsx, odt, ods, pdf
                  - Restrictions on input file content: empty files are
                    refused
                  - The user is informed of any changes to the input file
                    (that were not expressly requested with options such as
                    `--brackets`) with warnings instead of debug messages
                  
                  Minor changes:
                  - Temporary files are only created in /tmp
                  - Handle unknown encodings gracefully
                  
                  Fixes:
                  - Fix bug which resulted in comments being enclosed in '<>'
                    twice
                  - Fix iconv causing core dump with large input files


2020-05-13  0.1:  First alpha version
                  
                  Note: this has accidentally been tagged as 'v0.0' instead
                  of 'v0.1' in git.
