Clean up the mess with configure checks: some were used in the code, but never checked for. Also removed some anticipatory checks that were not fulfilled in three years, so they probably won't be, ever. And last, not least, deal with Notation flags.

The only BIC change is the removal of the third argument of one of the GpgME::Key ctors. It should not have been used outside of gpgme++

svn path=/trunk/KDE/kdepimlibs/; revision=691926