Read compliance name from libkleopatrarc
* src/common.cpp (de_vs_name, compliance_string): New. * src/common.h: Update prototypes. * src/cpphelp.cpp, src/cpphelp.h: Move de_vs_code into common. * src/mail.cpp (Mail::prepareCrypto_o, Mail::getCryptoDetails_o): Use new helper functions.
To have GPGME specific code was not a good place in cpphelp.