bootstrap modal added and demoed on list of payments section with dummy modal
resolved some issues with display and can pass the event id to the modal
passes the event users to the payment model
added some input fields to modal
datepicker added to payment modal
payment information from modal is now sent to the database
removed extra unused field in form
added conditioning on payment button and whether a project is active to indicate whether you can add a new payment
show and hide the individual events depending on whether an event has been selected.