1. Added implementation for trapping a request received at end-point "/:subscriber_trapping_code" supporting request methods GET, POST, PUT, DELETE and saving the trapped request details in DB.

2. Added migrations for removing query_string attribute from TrappedRequest, adding new attribute request_parameter to TrappedRequest, renaming attribute query_params TO query_parameters.As per Rails documentation the method request.query_parameters returns parameters that were sent as part of the query string thus the query_string attribute seemed redundant and unclear, while the method request.request_parameters returns parameters sent as part of the post body.

3. Implemented views to render a Subscriber's Trapped Requests Listing and a selected Trapped Request Details.