ADD: Modified Android code to include a benchmark of various storage types.
ADD: Modifications to the scripts for robustness and extra features.

normalize_results.py:
    - added replacement of objects that match WordNet objects
    - added function to take a data set and return CSV data
    - added function to count number of Yes vs. No votes

approve_hits.rb:
    - added functionality to iterate over more than 100 HITs
    - added rejection of incorrect results

publish_external.rb:
    - added command-line arguments for common parameters (number HITs,
      batches, etc.)