Allow you to specify the rouge version via an environemnt variable for testing (#6138)

Merge pull request 6138

.travis.yml

@@ -17,6 +17,8 @@ matrix:
       env: TEST_SUITE=fmt
     - rvm: *ruby1
       env: TEST_SUITE=default-site
+    - rvm: *ruby1
+      env: ROUGE_VERSION=1.11.1 # runs everything with this version
   exclude:
     - rvm: *jruby
       env: TEST_SUITE=cucumber

jekyll.gemspec

@@ -38,6 +38,6 @@ Gem::Specification.new do |s|
   s.add_runtime_dependency("liquid",                "~> 4.0")
   s.add_runtime_dependency("mercenary",             "~> 0.3.3")
   s.add_runtime_dependency("pathutil",              "~> 0.9")
-  s.add_runtime_dependency("rouge",                 "~> 1.7")
+  s.add_runtime_dependency("rouge",                 "~> #{ENV["ROUGE_VERSION"] || "1.7"}")
   s.add_runtime_dependency("safe_yaml",             "~> 1.0")
 end