In Ubuntu pkgstripfiles calls optipng which often works fine to save
data, but in the case of openscad-testing-data the recompression
breaks the later comparison of those in e.g. autopkgtests.

For Debian this should be a no-op, but accepting it would be helpful
for Ubuntu as a downstream.

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>

This reverts commit 256b4744.

add one more translation

polish the word

fix and add more translation based on updated template.

add and review some translation

fix typo

Use an absolute destination path for .csg output. This is necessary to
put the destination file in the correct place when the source path is
a relative path.

When outputting .csg, openscad interprets the destination path
relative to the parent directory of the source file, not relative to
the current directory when the program was started. This means that
something like `openscad a/b/c.scad -o a/b/c.csg` will try to write
a/b/a/b/c.csg, not a/b/c.csg as was expected by
export_import_pngtest.py.

Signed-off-by: Kristian Nielsen <knielsen@knielsen-hq.org>

This reverts commit 52cb795e.