Launcher v1.1

Between this release and the last, the following changes were made to the Linux and Windows launchers:
Linux:

• Fixed NULL being passed to closedir(), a nonnull function
• Compiled with optimized flags (-O3 -DNDEBUG -s -Wall)
  Windows:
• Added unused() macro to remove compiler warnings (pointless to the end user (you))
• Added versioninfo and file icon for the executable
• Fixed memory leaks that occurred during certain portions of the setup process
• Fixed memory leak caused when the game returns an error code
• Fixed program not exiting after python env could not be found
• Removed --quiet flag from upgrade process
• Compiled with optimized flags (-O3 -DNDEBUG -s -Wall)

launcher v1.0

This is the first release of the launcher, and Ideally the last. There may be a release before the 1.0 version of the actual game that includes an icon for the Windows EXE, since people will think it's a virus if it isn't pretty.