Dictionary/Definition: Disable autocorrecting

I removed useCanonical so that it wouldn't autocorrect our queries such as converting "cats" to "cat" or "dax" to "fax".
Gifs: Don't play the gif immediately.

Only play it when the detail view is clicked on (since it slows down the browser considerably).
DDG::Spice::Forecast: disable ddg-location relevancy check.
Gifs: Add "giphy" trigger.
Merge pull request #809 from duckduckgo/jag/dict

Dictionary/Definition: Disable autocorrecting
Merge pull request #822 from duckduckgo/jag/gifs-add

Gifs: Don't play the gif immediately.