prettypring setting

Added a 'prettyprint=true' setting to the build. This allows you to make a more readable pre-preprocessed build, to share it with people more easily (i.e. an artist you don't want to lead through ALL of the setup), or if you change your mind about the whole 'preprocessor' thing. Also verified it can build and debug under Adobe Flash CS3 with minor caveats (see the Project Web Site for details.)