Abstract commentLink  and appease the JShint gods

commentLink is a nice abstraction from the hardcoded Hacker News URL,
and cleanText hasn’t been used in ages.
Merge pull request #103 from christianbundy/abstract-commentLink

Abstract commentLink  and appease the JShint gods
Merge pull request #104 from christianbundy/master

Create empty .gitignore and rename "Popular" to "Best"
Ignore best posts without any points
Apply votes quietly every 5 seconds
Only show time sort on Best sorting
Add hot sorting
Appease the JSHint gods... again
Merge pull request #105 from christianbundy/add-hot-sort

Add hot sort
Limit hot sorting to 50 posts

Right now all posts are being published, which is absolutely killing
the browser.