.travis.yml in utf8_proc-0.2.2 vs .travis.yml in utf8_proc-0.2.3

- old
+ new

@@ -1,5 +1,15 @@
-sudo: false
+dist: trusty
+sudo: required
 language: ruby
 rvm:
   - 2.4.0
-before_install: gem install bundler -v 1.14.4
+  - 2.3.3
+  - 2.2.6
+  - 2.1.10
+  - 2.0.0
+before_install:
+  - wget -O utf8proc.zip https://github.com/JuliaLang/utf8proc/archive/v2.1.0.zip
+  - unzip utf8proc.zip
+  - pushd utf8proc* && sudo make install prefix=/usr && popd
+  - gem install bundler -v 1.14.4
+script: bundle exec rake