handlr v0.3.0

DEPENDENCIES

• drop RefManageR from package Imports as it will likely be archived soon - add package bibtex to Suggests for reading/writing bibtex (can't be in Imports because it's Orphaned on CRAN) (#22)

NEW FEATURES

• handlr gains support for Citation File Format (CFF), "plain text files with human- and machine-readable citation information for software". See https://citation-file-format.github.io/ for more info - new functions: cff_reader() and cff_writer() and associated changes in HandlrClient. Associated with CFF support, handlr gains new Import package yaml (#16)

MINOR IMPROVEMENTS

• improvements to Citeproc parsing: previously dropped many fields that we didn't support; now including all Citeproc fields that we don't specifically parse into extra fields prefixed with csl_ (#20)
• nothing changed, but see discussion of bibtex errors in case you run into them (#9)