Minor changes to Forecast styling, especially on mobile.
Remove instances of #zero_click_abstract etc
Zanran - Fixed indentation
CONTRIBUTING: Point to the correct location of metadata.md.
Merge pull request #271 from duckduckgo/jag/fix-link

CONTRIBUTING: Point to the correct location of metadata.md.
Merge pull request #235 from jackadam/master

Minor changes to Forecast styling, especially on mobile.
Google+: Images passed to /iu should be in HTTP.
Video: Images passed to /iu should not be in HTTPS.
Khan Academy: Change HTTPS to HTTP for speed.
Streaming: isRelevant wasn't getting executed. Fixes #273

This was my fault; I put `DDG.isRelevant` in the if statement, and it turns out it was getting short circuited and never getting evaluated. Also, I'm not sure why we were using `stringsRelevant`.
Streaming: Removed `console.log`.
fix espn more at player links by league
added additional initial error handling
Merge pull request #275 from duckduckgo/jag/canistreamit

Streaming: isRelevant wasn't getting executed. Fixes #273
Merge pull request #274 from duckduckgo/jag/iu

Change HTTPS to HTTP for the images that are passed to /iu/
amazon: check for null
Remove instances of #zero_click_abstract etc
Zanran - Fixed indentation
removed testing css
remove unneeded CSS modifications from Zanran