clip should not be recorded under R 2.15.x
check 'page' on the fly; fixes the issue http://stackoverflow.com/q/19071463/559676
bump version
use Authors@R to generate maintainer as well; "cre" does not mean original creator, but maintainer
test identical() first since it is more common, easy, and efficient
specify the environment for S4: prepare for testthat v0.8
move tests from inst/tests/ to tests/thatthat

test_package() no longer works, but test_check() is not there on CRAN yet
tests are not installed by default
wrap = FALSE for roxygen2 3.0, and re-roxygenize
bump version