Merge pull request #27 from os97673/patch-1

we always should load ruby-debug-base for JRuby

Author: denofevil

lib/ruby-debug-ide.rb

@@ -2,7 +2,7 @@
 require 'stringio'
 require "socket"
 require 'thread'
-if (RUBY_VERSION < '2.0')
+if (RUBY_VERSION < '2.0' || defined?(JRUBY_VERSION))
   require 'ruby-debug-base'
 else
   require 'debase'