Version 0.2.0

Breaking change: NameOptions::is_suppressed now takes a fourth, boolean argument that indicates whether the name is printed in an initial or subsequent citation.

• Fix issues with et. al. shortening
• Fix rendering of Chicago-style page ranges
• Fix parsing of givenname-disambiguation-rule in CSL
• Add the alias printing to the printing-number CSL variable
• Fix a panic that occurred when formatting page ranges

Thanks to @DerDrodt and @kianmeng for contributing to this release!