as.npreg: initial commit of function to convert into npreg
as.npreg: add documentation
as.npreg: export into NAMESPACE
bw_IK: add normal kernel
bw_IK: complete with bias and var constants for normal
RDDdata: add new argument data
RDDgenreg: export function, update code
man RDDreg_lm: switch ref to details
plotSensi: minor modif in check if model was well evaluated
as.npreg: update the RDDcoef() for allCo, still not working for all paras....