Updating Gemfile to latest versions of libraries:

* updating deprecated require 'rake/rdoctask' with 'rdoc/task'
* preparing to remove deprecated ActiveRecord set_table_name with self.table_name=

test/schema/version.rb

@@ -1,4 +1,10 @@
 class SchemaInfo < ActiveRecord::Base
-  set_table_name 'schema_info'
+  if respond_to?(:table_name=)
+    self.table_name = 'schema_info'
+  else
+    # this is becoming deprecated in ActiveRecord but not all adapters supported it
+    # at this time
+    set_table_name 'schema_info'
+  end
   VERSION = 12
 end