Relax version requirement for redcarpet
Remove deprecation warnings in test suite
Revert "Remove deprecation warnings in test suite"

This reverts commit adffdf55dd8fced5e7774bc3aa1d32983ea0c43d.
Fix nil on potentially empty dependency config var
Merge pull request #138 from carpodaster/fix/relax-redcarpet-dependencies

Relax redcarpet dependencies