CODE_OF_CONDUCT.md: added

Just to underscore how we treat each other in this project. Nothing new
really, but could be useful for newcomers and outsiders to see our
values.

docs/CODE_OF_CONDUCT.md

+Contributor Code of Conduct
+===========================
+
+As contributors and maintainers of this project, we pledge to respect all
+people who contribute through reporting issues, posting feature requests,
+updating documentation, submitting pull requests or patches, and other
+activities.
+
+We are committed to making participation in this project a harassment-free
+experience for everyone, regardless of level of experience, gender, gender
+identity and expression, sexual orientation, disability, personal appearance,
+body size, race, ethnicity, age, or religion.
+
+Examples of unacceptable behavior by participants include the use of sexual
+language or imagery, derogatory comments or personal attacks, trolling, public
+or private harassment, insults, or other unprofessional conduct.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct. Project maintainers who do not
+follow the Code of Conduct may be removed from the project team.
+
+This code of conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community.
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by opening an issue or contacting one or more of the project
+maintainers.
+
+This Code of Conduct is adapted from the [Contributor
+Covenant](http://contributor-covenant.org), version 1.1.0, available at
+[http://contributor-covenant.org/version/1/1/0/](http://contributor-covenant.org/version/1/1/0/)

docs/Makefile.am

@@ -38,7 +38,7 @@ EXTRA_DIST = MANUAL BUGS CONTRIBUTE FAQ FEATURES INTERNALS SSLCERTS	 \
  KNOWN_BUGS BINDINGS $(man_MANS) $(HTMLPAGES) HISTORY INSTALL		 \
  $(PDFPAGES) LICENSE-MIXING README.netware DISTRO-DILEMMA INSTALL.devcpp \
  MAIL-ETIQUETTE HTTP-COOKIES SECURITY RELEASE-PROCEDURE  \
- SSL-PROBLEMS HTTP2.md ROADMAP.md
+ SSL-PROBLEMS HTTP2.md ROADMAP.md CODE_OF_CONDUCT.md
 
 MAN2HTML= roffit < $< >$@