v0.9.4

This release fixes regressions that were present at least in 0.9.2 and 0.9.3, which caused this gem to be incompatible with Rails < 5.2.

Due to an error in our build matrix, we weren't properly testing against other versions of Rails.

Bugfixes

Broken backwards compatibility. (#79)
Broken build matrix. (#81 )

Other

Build against proper Rails 5.2 release. (#80 )