Version 1.0.0

• Port everything to Python 3.5+
• Changed license
• Add readthedocs documentation
• General code overhaul:
  • Added utf-8 encoding declarations to all files
  • Better formatting for more readable code
  • Eliminated duplicate code
  • Eliminated unused code
  • Eliminated unused imports
  • Eliminated some pytest warnings
  • Cleaned up lexer classes
  • Prefer single-quoted strings to double-quoted
  • Improved docstrings and added missing ones
• Added setter for values (and variable for @string) for @comment, @string and @Preamble entries
• Extended some tests and completed missing ones
• Improved main bib lexer slightly by removing a call to the remove_whitespace_tokens function since the lexer already removes whitespace in entries and combines whitespace as part of comments outside of entries
• Fixed minor errors:
  • Date fields follow ISO8601-2 Extended Format specification level 1 which does not allow for single digit numbers for days, i.e ‘2008-12-7’ is not allowed but ‘2008-12-07’ is
  • Preprocess pagetotal field
• Cleaned up tools and moved them from the top-level directory into bibpy/scripts to use setuptools’ entry_points feature and improve portability