python bindings: importing from keyservers with hkp4py
* added a new example script to search the keyservers and import the results, this time using Marcel Fest's hkp4py module. * Updated the key importing section to match this addition. * Tested with the current version of hkp4py from github.
Tested-by: Ben McGinnes <email@example.com>
- Signed-off-by: Ben McGinnes <firstname.lastname@example.org>