Cache the absolute dir that the script is searched in and the name of
the script. These are the only two things that change.
Update the test to test for both #1235 and the case when a script of the
same name is in a different directory (which also covers the subproject
case).
Closes#1235
Many frameworks, such as glib, provide translation functions and
functions that take format strings. As such every application using
these must duplicate the gettext arguments to function properly.
This reduces that duplication and improves correctness so they are
not left out.
Fixes#1123
For each project this creates a <project>-update-po target.
When ran this updates the pot file and then merges it back
into the po files in the source directory with `msgmerge`
for project maintainers and translators.
Fixes#819
Igor Gnatenko