Dino Catalog Exercise - Iteration 1

This iteration completes all the specifications except Extra Credit 1: allowing user to pass in a hash of search parameters. This feature will be completed in Iteration 2 after this review.

This is an interactive command line program that is initiated by running "ruby init.rb csv_filename" from the dino_catalog directory. The "csv_filename" argument is optional; if it is not passed in, the program will ask the user to enter it after initialization.

The main drivers of the program are the following files: init.rb; app.rb; catalog.rb; and dinosaur.rb. The init.rb file launches an instance of the App class. The App class creates a Catalog instance, consisting of Dinosaur objects. User input and processing of the search filters is handled by the App class with a number of modules (filters.rb; user_processing.rb; and user_prompts.rb). The print functionality is handled by the display.rb module and the JSON export feature is handled by the json_export.rb module.

Note there is a option_parser.rb file that will be implemented in Iteration 2 to allow the user to pass in search parameters on the command line. This file is commented out.
Deleted this argument, and all references to the user hash input, which won't be implemented in this iteration.