Merge pull request #50 from Pouncealot/master

Added sentiment analysis to the backend
added favicon
added links to click through news source
Merge pull request #51 from alezucco/master

(refac)Add favicon, link to source article
fix zoom on map
Merge pull request #52 from alezucco/master

(refac)fix zoom on map
(bug) Give correct spacing for country formatting - Format news.aggregator.js
(bug) Show first article on page load and zoom to first country closes #48
Merge pull request #55 from polynickglot/bug/format-countries

(bug) Format countries correctly and refactor news.aggregator.js
Merge pull request #56 from polynickglot/bug/show-first-article

(bug) Show first article and country on map on page load closes #48
Remove extra '>'
Merge pull request #57 from polynickglot/master

Remove extra '>'
add function to clear old articles from db
Merge pull request #58 from doublelift/master

add function to clear old articles from db
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changed db to only store score of sentiment
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