New classes:
- database_model: Manage the database tables (keys, req, cert, crl, templ)
extracted from widgets/MW_database.cpp
- arguments: parse commandline, dynamically create help text
- extended russian translation by Pavel Belly
- dropped approach to create sentences from different parts
like "Successfully created %1 '%2'" with %1 being "the certificate"
and %2 being the name. This leads to trouble for other languages.
Therefore I decided to mention the whole sentences and accept
the many, almost duplicated sentences.
- Consolidate german translation:
. Smart card/Smartcard -> Chipkarte
. Besitzer -> Inhaber
. Unterschriftsanfrage/Zertifikatsanfrage -> Zertifikatsantrag
- Support translations for pki_*.cpp by adding Q_OBJECT
