CRAN release 2.18

v2.18

version bump

CRAN release 2.17.1

v2.17.1

frame is needed

CRAN release 2.17

v2.17

touchups for examples

CRAN release 2.16

v2.16

check fixes

CRAN release 2.15.1

v2.15.1

foreach no longer needed

CRAN release 2.15

v2.15

reorganize

CRAN release 2.14

v2.14

pkg update

CRAN release 2.13

v2.13

remove file

CRAN release 2.12

v2.12

readme not supposed to be ignored

CRAN release 2.11

v2.11

version bump