clean bundles path while connecting to avoid stale packages in spark_apply
clean bundles path while connecting to avoid stale packages in spark_apply

rstudio/sparklyr,kevinykuo/sparklyr,kevinykuo/sparklyr,kevinykuo/sparklyr,kevinykuo/sparklyr,rstudio/sparklyr,rstudio/sparklyr,rstudio/sparklyr