Push

I’ve switched my Clojure working environment from Eclipse/Counterclockwise to Clooj/Leiningen (these tools are available from https://github.com/arthuredelstein/clooj and https://github.com/technomancy/leiningen), and in the process the project structure has been recreated, a bit differently, and with some other changes made simultaneously (details below). Available as usual from: https://github.com/lspector/Clojush

20110911: - Switched from Eclipse to Clooj/Leiningen for development and  
            rearranged the project for this.
          - Added calls to end of all example files.
          - Examples can be run from the OS command line (assuming 
            that leiningen is available) with calls like:
              lein run examples.simple-regression
          - Added local-file dependency and used file* for file access.
          - Removed ant and tagged-ant examples because of bugs related
            to confusion of push interpreted states and ant world states.