#9 openpgp now default, terrible performance

[Tom 'spot' Callaway]

As detailed here:
https://bugzilla.redhat.com/show_bug.cgi?id=433582

Between 2.6.5 and 2.6.6, mcrypt performance went from great to awful, as a result of now defaulting to openpgp. In addition, openpgp cannot handle large files at all. Given the massive performance and functionality problems, I feel that openpgp should not be the default for mcrypt, until those issues are resolved upstream.

I've attached a patch which simply reverts the default back to the mcrypt method, rather than the openpgp method.

[Tom 'spot' Callaway]

use native mcrypt by default, not openpgp