Udated readme file with JRuby support
Udated readme file with JRuby support

rsim/ruby-plsql,yahonda/ruby-plsql,JDominator/ruby-plsql,jgebal/ruby-plsql,JDominator/ruby-plsql,flash-gordon/ruby-plsql,jgebal/ruby-plsql,jgebal/ruby-plsql,yahonda/ruby-plsql,rsim/ruby-plsql