Test sass 3.1 through 3.4
Add sass Gemfiles to travis configuration
Support old find_real_file arguments
Wrap existing engine with erb
Merge pull request #289 from rails/test-sass-versions

Improve Sass version coverage
Add back deprecated .css extension

Reverts d355de9b5aa8b79576c9afcadb58ebe164155861
Add deprecation notice
Merge pull request #291 from rails/deprecated-extra-css-ext

Deprecated .css.scss extension
Use context from options
Fix deprecation message for css.sass files
Merge pull request #293 from prathamesh-sonpatki/fix-sass-deprecated-message

Fix deprecation message for css.sass files
Assert no warnings are logged during asset building
Merge pull request #295 from rails/assert-no-warnings

Assert no sass warnings
Merge pull request #292 from simplybusiness/fix_importer

Allow Importer to be serialized
Fail fast if options[:sprockets] is not present
We use the tests environment on travis
Release 5.0.0
pull from main repository