Check and rewrite non-inclusive code and documentation

Some readings:

• https://tools.ietf.org/html/draft-knodel-terminology-03
• https://developers.google.com/style/inclusive-documentation

A overall check should be done on the entire project to be sure no problematic terms are in use (such as "whitelist", "blacklist", "native", "master", "slave" and others more detailled in above links).