Randall Reed, Jr.

Upgraded to Ruby 2.5.1, seeing this deprecation warning ``` /Users/randallreedjr/.rvm/gems/ruby-2.5.1@screenslate/gems/acts_as_indexed-0.8.3/lib/acts_as_indexed/class_methods.rb:177: warning: constant ::Fixnum is deprecated ``` As of Ruby 2.4.0, [Fixnum and Bignum are unified into Integer](https://www.ruby-lang.org/en/news/2016/12/25/ruby-2-4-0-released/).

Sliding on mobile device scrolls entire page

12

I have only seen this happen on an actual mobile device, not in the mobile views available in either Chrome or Safari developer tools. It appears to only affect iOS...

Enhancement - Outer Join

1

First thing I can think of that is missing is an introduction to the outer join. Perhaps have a level where you find a list of cities that are not...