This pr fixes issue #235: Show winning Bounty Claim's comments on Issue page

So I was able to adjust the Backer h4 title as appropriate:
-One backer: "Backer:"
-2-4 backers: "Backers:"
-5+ backers: "Top Backers:"

Had a little bit of issue with comments for winning bounty claims. Didn't have problem getting all the responses onto the claim info box, but had to create a filter so the empty responses are not posted on the claim info box as well. The filter does work, but it is creating the following error on the console: TypeError: Cannot read property 'length' of undefined. Also unable to hide the Comment header if there are no responses.