* Added a "sandbox" puzzle type to ResearchNet to facilitate "experimental" pipelines, such as molecular computers. * Added Japanese and Italian translations. * Fixed several errors in the Russian translation. * "Quick alt-tab" fullscreen now properly hides the menu bar and dock on Mac OS X. * Fixed a bug where erroneous zero scores were sometimes uploaded to Steam leaderboards. * Fixed a bug where control-dragging atoms in molecule editors wouldn't copy them on Mac OS X.