quick and dirty mod: added filename and directory structure, to

separate different web pages, and add pagename, dimensions and time to filenames

command: phantomjs abovethefold.js http://example.com

result:
* directory /output/example.com/ created (if not exists)

files saved to:
* /output/example.com/example.com.1280x1024-2014-02-04T01:05:20.735Z-abovethefold.css
* /output/example.com/example.com.1280x1024-2014-02-04T01:05:20.735Z-abovethefold.js

additional files for the same site are saved to the same directory.

added debug output to show files location:

    *******************
    Files saved to:
    output/example.com/example.com.1280x1024-2014-02-04T01:05:20.735Z-abovethefold.{css,js}