Finish 2.2.0

.travis.yml

@@ -4,14 +4,15 @@ script: "bundle exec rspec spec"
 env:
   - CI=true
 rvm:
-  - 2.2.5
-  - 2.3.1
-  - jruby
-  - rbx
+  - 2.2
+  - 2.3
+  - 2.4
+  - jruby-9
+  - rbx-3
 cache: bundler
 sudo: false
 matrix:
   allow_failures:
-    - rvm: rbx
-    - rvm: jruby
-
+    - rvm: jruby-9
+    - rvm: rbx-3
+dist: trusty

VERSION

@@ -1 +1 @@
-2.1.0
+2.2.0

lib/rdf/aggregate_repo.rb

@@ -117,8 +117,9 @@ def named(name)
     # @see RDF::Enumerable#supports?
     def supports?(feature)
       case feature.to_sym
-      when :graph_name    then @options[:with_graph_name]
-      when :validity      then @options.fetch(:with_validity, true)
+      when :graph_name        then @options[:with_graph_name]
+      when :validity          then @options.fetch(:with_validity, true)
+      when :literal_equality  then sources.all? {|s| s.supports?(:literal_equality)}
       else false
       end
     end