lintr dependence pinned to lintr=2.0.0 so that non-R-codeblocks and empty R markdown files can be dealt with cleanly
Tests that depend on stringdist::seq_sim were rewritten to ensure they consistently pass
Dependency on deprecated dplyr verbs removed
Code to prevent double-reporting of code-block pairs was initiated by @Alanocallaghan
NEWS.md file to track changes to the package.