TODO list for the SDA package

0.0-1
	o commit to R-Forge
0.1
	o include all datasets from appendix
0.2
	o full vignette (including in-text datasets)
	o first release to CRAN
0.3
	o reformulate examples 
	as tests for survey package
	in tests/ subdirectory
0.4
	o SURVEY and ADDGEN
	o other functions (if necessary)
