(epg-make-import-status): New object epg-import-status.
(epg-make-import-result): New object epg-import-result.
(epg--status-IMPORT_RES): New function.
+ (epg-import-result-to-string): New function.
* epa.el (epa-keys-mode-map): Don't bind epa-sign-keys.
(epa-sign-keys): Make it obsolete.