Made parser thread-safe
Made parser thread-safe

PerfectXL/XLParser,shaunstanislaus/XLParser,millergarym/XLParser,kouweizhong/XLParser,shaunstanislaus/XLParser,shaunstanislaus/XLParser,SSNico/XLParser,Jobava/XLParser,kouweizhong/XLParser,SSNico/XLParser,kouweizhong/XLParser,millergarym/XLParser,PerfectXL/XLParser,Jobava/XLParser,Jobava/XLParser,millergarym/XLParser,SSNico/XLParser,PerfectXL/XLParser