Allows Ripl to execute code or print a message after every result.
Examples:
1) Printing a blank line after each result
require_relative 'ripl-after-result' Ripl::Shell.include Ripl::AfterResult Ripl.config.merge! after_result:"\n"
2) Executing arbitrary code with the result
results = [] require_relative 'ripl-after-result' Ripl::Shell.include Ripl::AfterResult Ripl.config.merge! after_result:proc{ |result| results << result }