This reverts commit 80ced3e418.
This turned out to be intentional. Rounding the aspect ratio to 2
decimal places is so that searches for exact ratios like `ratio:16:9` or
`ratio:1.78` work even when the ratio doesn't exactly match. Rounding to
2 decimal places means that the ratio: metatag has a 1% error tolerance.
This directory contains library code used through Danbooru. This includes things like defining API clients, dealing with
sources, parsing tag searches, storing and resizing images, and so on.
Many of the files here use the Service Object pattern. Instead of putting complex code in models or controllers, it goes
here, in plain old Ruby objects (POROs). This keeps models and controllers simpler, and keeps domain logic isolated and
independent from the database and the HTTP request cycle.