Merge pull request #948 from awolfs/master

program update
Added Berlin 2014
Merge pull request #949 from vondeetzen/master

Added Berlin 2014
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.
sponsor and program updates