Huge preferences window overhaul - now looks like a standard OS X preferences panel.
Graphical icons in the menu bar are no longer the default - they are now text. See the FAQ for info on how to change back to graphical icons.
Added a preference for "smart" menu bar icons - e.g. use the first letter of the current GPU ('n' for NVIDIA, 'i' for Intel, 'a' for AMD). Doesn't apply to legacy dual-NVIDIA GPU machines.
Added Czech, Russian, Ukranian, and Slovak localizations.
Removed power source info from menu, as it was unnecessary.