SignEncryptFilesController: use opaque signatures for archives
SignEncryptFilesController: use opaque signatures for archives

This is the easy way out of the problem what we don't write out the archive
ourselves, but expect it to be embedded in the output.

Also, fix a broken (but benign) if-condition.

svn path=/branches/kdepim/enterprise4/kdepim/; revision=1044141

lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi,lefou/kdepim-noakonadi