* Gfycat integration
* Added headers to resolve make check-style.
* Updated tests.
* Removed gfycat analytics.
* Added '(Beta)' to GIF system console.
* Added gfycat API credentials to admin console.
* Removed gfycatSdk.
* Only enable gif picker if gfycat credentials are specified.
* Updated gfycat credentials description on admin console.
* Ran check-style.
* Revert check for gfycat api credentials.
* Updated package.json to latest redux commit.
* Deleted unused stylesheets.
* Changed Components to PureComponents.
* Re-added emoji preview which might have been removed from merge conflict.
* Fixed make check-style errors.
* Minor updates to Gfycat System Console text
* Add missing strings to en.json
* Use image proxy.