Use the :ruby_encoding value from charlock 0.7.2
test ruby_encoding
forgot to add the test fixture
Merge pull request #1253 from github/newer-charlock

Use the :ruby_encoding value from charlock 0.7.2
bump version for v2.11.4 release
Merge pull request #1254 from github/cut-release-v2.11.4

v2.11.4 release