doc/

doc/
2004-02-24  Marcus Brinkmann  <marcus@g10code.de>

	* gpgme.texi (cancellation): New section.

gpgme/
2004-02-24  Marcus Brinkmann  <marcus@g10code.de>

	* gpgme.c (gpgme_cancel): New function.
	* engine-backend.h (struct engine_ops): New member cancel.
	* engine.h (_gpgme_engine_cancel): New prototype.
	* engine.c (_gpgme_engine_cancel): New function.
	* engine-gpgsm.c: Add new member cancel.
	(gpgsm_cancel): New function.
	(gpgsm_release): Use it.
	* rungpg.c: Add new member cancel.