Version 2.8.0 is showing deprecation warning from register_engine about less-rails

[victorsosa]

Having the same issue, too

DEPRECATION WARNING: Sprockets method `register_engine` is deprecated.
Please register a mime type using `register_mime_type` then
use `register_compressor` or `register_transformer`.
https://github.com/rails/sprockets/blob/master/guides/extending_sprockets.md#supporting-all-versions-of-sprockets-in-processors
 (called from block in <class:Railtie> at /usr/share/gems/gems/less-rails-2.8.0/lib/less/rails/railtie.rb:16)
DEPRECATION WARNING: You are using a deprecated processor interface Less::Rails::ImportProcessor.
Please update your processor interface:
https://github.com/rails/sprockets/blob/master/guides/extending_sprockets.md#supporting-all-versions-of-sprockets-in-processors
 (called from block in <class:Railtie> at /usr/share/gems/gems/less-rails-2.8.0/lib/less/rails/railtie.rb:21)
Removing stale PID file at /home/vns/workspace/perseus/solr/pids/development/sunspot-solr-development.pid

[simi]

should be fixed in latest versions