* Add redis gem and client
* use keyword arguments in redis initializer
* check for REDISCLOUD_URL and fallback on REDIS_URL when connecting to redis
* dont parse Redis url in initializer
* Add specs for ArticleImageUploader
* Add specs for BadgeUploader
* Add specs for CoverImageUploader
* Add specs for ProfileImageUploader
* Refactor uploaders to inherit from BaseUploader
* Strip EXIF and GPS data from uploaded images
* Add ImageMagick to the docs
* Protect strip_exif
* Correct installation documentation
* Add stylized titles
* Add some changes to the getting started documentation
* Add changes for the backend guide
* Add changes for the design guide
* Add testing / Q&A guide improvements
* Minor fixes to contributing docs
* More improvements to the general doc
* Improvements for frontend guide
* Upgrade to Ruby 2.6.0
* Change Ruby version in guides and in travis
* Upgrade Rubocop
* Change Rubocop version for code climate
* Update .codeclimate.yml
* Update badge