Minor update

The gamma12 build is live on Steam now. This is a fairly minor update with the following changes and fixes:

• -novignette and -notint can now be specified on the command line to hide the vignette and tint.

• Added European Portuguese translation.

• Fixed the crash when starting the game from within a directory named with non-ANSI characters.

• Resuming an archived game now correctly restores the score.

• Logging's been added around the Daily Challenge to track down the update loop it can get stuck in.