rubias 0.3.4

Small patch update to deal with some CRAN check NOTES:

rubias 0.3.3

Changes

rubias 0.3.2

Changes

rubias 0.3.1

Changes

rubias 0.3.0

Changes

rubias 0.2.0

Changes

rubias 0.1.0

This is the first version submitted to CRAN.