changing s4-methods into s3
seperating sim_gen and sim_genCont
dat -> dat semantic
deleting redundant classes and fields
added sim_resp
from %&% to %>%
#reps is not part of sim_setup but of sim
update version and news
update tests
base now as data.frame
new calc_var function
seperation of sim_gen and sim_genCont
refactoring class-system
bugfixes + doc updates
refactoring base_id + select_cont
renaming
sample function now wrapper around dplyr
changes in agg_standard
refactor gen_generic
bugfixes