Issue #2320781 by MegaChriz: Added validation for feed importer configuration: check for invalid bundle and invalid language.

Issue #2867182 by MegaChriz: Added a finishImport() method to FeedsSource to bundle tasks that need to be done at the end of an import.

Issue #1886230 by MegaChriz, generalredneck: fixed invoking rules events "feeds_before_import" and "feeds_after_import".

Issue #1143280 by David_Rothstein, MegaChriz, dshields, Matt V., marktheshark: Provide an option to delete the uploaded file after import is done.

Issue #1470530 by stefan.r, GaëlG, mikran, Cottser, gnucifer, MegaChriz, vinmassaro, kostajh, Mithrandir, riho, jaanhoinatski, nrambeck, byronveale, dbassendine, PsycleInteractive, imclean: Added Unpublish/Delete nodes not included in feed.

Issue #2275893 by twistor, dagomar: Fixed Process in background doesn't work on non-periodic imports.

Issue #1852048 by ianthomas_uk: Comments suggest exceptions are ignore, when in fact they are rethrown.

Issue #1660950 by valthebald: Fixed FeedsSource expects stored  to be array, which is not always the case.

Issue #1843146 by twistor: Add pluginType() method to be able to determine the plugin type without having to lookup the inheritance.

Issue #1742740 by Staratel: Fixed Add magic method __isset() to FeedsConfigurable to use default entity wrapping.

Issue #1690434 by twistor | jzornig: Fixed Notice: Undefined variable: job in FeedsSource->scheduleClear() (line 319 of sites/all/modules/feeds/includes/FeedsSource.inc).

sourceDelete() function descriptions are the wrong way round.

when necessary.

Issue #1161810: Fixed declaration of FeedsSource::instance() should be compatible with that of FeedsConfigurable::instance().