Remove copyright headers, update TOXSWA_cwa test

- The window column of the windows component of a TOXSWA_cwa object is not
a factor any more, but a character vector.
- testthat::expect_equal_to_reference is replaced by
testthat::expect_known_output, so we can have git diff show what has
changed

1 files changed, 1 insertions, 1 deletions

diff --git a/man/sawtooth.Rd b/man/sawtooth.Rd
index 44ab2be..0850ded 100644
--- a/man/sawtooth.Rd
+++ b/man/sawtooth.Rd
@@ -23,7 +23,7 @@ is ignored}
 the corresponding amounts applied in the second column.}
 }
 \description{
-If the application pattern is specified in \code{applications}, 
+If the application pattern is specified in \code{applications},
 \code{n} and \code{i} are disregarded.
 }
 \examples{