* fix Researcher ID (still) doesn't display Issue #29.
* make options 'symbols' and 'nosymbols' available to all styles to toggle whether symbols should be used or not. Include symbols in oldstyle by default.
* migrate older newcommand syntax in moderncvcollection.sty to the xparse syntax.
* Fix resumé typo in template. Is now résumé.
* remove loading lmodern fonts in all styles as they can produce issues with german characters, see https://tex.stackexchange.com/questions/496630/lualatex-problems-with-german-characters.
* remove loading inputenc package by default. Only load the package when pdflatex is used.