redis_db.rb: Refactor the DB connection code
contact_form.rb: Connect to the DB to store Host info after POST'ing the form
web.rb & main_email.rb: Refactor the code to adjust to redis_db.rb
other files: Minor adjustments
*_spec.rb: placeholder for test cases for remaining classes
Point to the Production Server in End-to-End Test
Initialize the Redis-DB for the Queues
Initialize the Redis-DB for the Queues - Include require files
Minor bug fix in redis_db.rb