Ruby: added flow variables list updating

Author: rssdev10

RubyScript/rb/knime.rb

@@ -147,6 +147,7 @@ def self.[]=(name, val)
       else
         $node.pushFlowVariableString(name, val.to_s)
       end
+      @vars = $node.getAvailableFlowVariables
     end
   end