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

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.

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

#929058 alex_b: Report status of source on import and delete forms, track last updated time on a source level.

- DRUPAL-7--1-0-alpha2 http://github.com/lxbarth/feeds/tree/DRUPAL-7--1-0-alpha2
and
- DRUPAL-7--2-0-alpha1 http://github.com/lxbarth/feeds/tree/DRUPAL-7--2-0-alpha1

#908964 alex_b: Break out scheduler. Note: Features depends on Job Scheduler module now: http://drupal.org/project/job_scheduler .

Add sourceSave() and sourceDelete() methods notifying plugin implementers of a source being saved or deleted. Minor cleanup on sourceForm().