encryption/sqlcipher support (4.8 branch)

[Rex Dieter]

Rex Dieter wrote:

> I've been investigating a feature request for fedora packaging,
> https://bugzilla.redhat.com/show_bug.cgi?id=1423441
> 
> I presumed this was to enable the sqlcipher plugin,

OK, looking closer at sources, this encryption support appears to be 
unrelated to sqlcipher, more a gpgme issue.  Is this call failing somehow?
from  libkgpgfile/kgpgfile.cpp:

bool KGPGFile::GPGAvailable()
{
  GpgME::initializeLibrary();
  bool rc = (GpgME::checkEngine(GpgME::OpenPGP) == 0);
  // qDebug("KGPGFile::GPGAvailable returns %d", rc);
  return rc;
}