Add Code of Conduct, and number of smaller updates.

Signed-off-by: Krzysztof Wilczynski <krzysztof.wilczynski@linux.com>
Renaming Jeff Sussna's talk at his request.
Merge pull request #951 from bridgetkromhout/master

Renaming Jeff Sussna's talk at his request.
Merge pull request #950 from kwilczynski/warsaw-2014

Add Code of Conduct, and number of smaller updates.