Feature/pretty filings

[LindsayYoung]

This works for committee pages and filings.

Need to add candidate, the API accepts candidate ID so that should be a minor lift.

[LindsayYoung]

This should work better with staging data there are some candidate_ids missing from the dev data.

Here is an example of a candidate that works http://localhost:3000/candidate/S4MD00111?tabs=filings

[jmcarp]

This function is repeated below. How about putting it in another file (maybe helpers.js) and writing a little more concisely:

var amendmentMap = {
  A: 'Amended',
  N: 'New'
};
function(data) {
  return amendmentMap[data] || '';
}