These additional pointers were introduced for translations,
and needed their own tricks to get lupdate to recognize the
strings. Using QCoreApplication::translate() removes the
need to a QObject to provide context. Drop the now-unneeded
parameters.
Instead of using tr and some macro hacks to get lupdate to
recognize the translation, instead use QCoreApplication::translate()
which takes its own context for translation.
- add license file from libpwquality for provenance
- translate pwquality_strerror() into the PWSettingsHolder convenience class
- use Qt translations, since we'd otherwise also have to wire up, and
wire in, libpwquality gettext translations.
- Use shared_ptr and a helper class to hide away raw pointer use
from libpwquality. Provide a convenience C++ API.
- Simplify configuration through helper class.
