v0.5-pre: word count ranges, file export

Added -range and -export flags. Scraper/API code moved to own project ScrapingFromOurOwn (SFO2), now a requirement.

-range takes comma-separated numbers (ex: 0,500,1000,5000) and counts works (ex: 0-500, 500-1000, 1000-5000), overriding -min and -max values. -export takes a file name and saves the output to file instead of printing to console.