Using Rabl with Rails 3.2 causes an error

[willnet]

ActionView::Digestor was added in this commit and is available from Rails v4.0.0.

So, if you try to use Rabl with Rails 3.2, you’ll get a NameError: uninitialized constant ActionView::Digestor at this line. This issue has likely existed since Rabl v0.9.0.

ref: Custom digester for each file and its dependencies. Inherited from `… · nesquena/rabl@59c020c