* configure.ac: Mark gpgme and gpgol als SPKGEX. Clarify output.
* doc/README.de.txt, doc/README.en.txt: Note 64 support.
* packages/packages.current (gpgol): Update to beta for testing.
* src/Makefile.am: Mark gpgme and gpgol as expkgs. Add config opts.
* src/inst-gpgex.nsi: Undefine exprefix if necessary.
* src/inst-gpgol.nsi: Install 64 bit variant.
* src/uninst-gpgol.nsi: Uninstall 64 bit variant.