Updated Begin:   R/hpcc.begin.R

	updated data layout:   R/hpcc.data.layout.R
	updated dataset:   R/hpcc.dataset.R
	updated execute:   R/hpcc.execute.R
	updated output:   R/hpcc.output.R
	updated download file:   R/hpcc.showFilesToDownload.R
	updated package:   package/rhpcc_1.0.tar.gz