Incorporated the count down code that wasn't used last year

- We need to find a better way of handling sub views with vanilla
  Backbone
Converted  CSS styles from original code into a separate SASS file
Updated git ignore file to exclude css source maps generated by SASS
Making the countdown styles more SASSy

- change width for numbers background and used variables for comon
  elements such as colors and fonts.
Updated model to return back place holder data if the endpoint is down

- we may want something else to display, but it's important to show
  something. Before the entire section would be blank.
Defined remainingTime place holders and default values for the model

- this makes more sense vs setting the model after the fact
Added an endpoint to nodejs for the countdown REST call