Issue #2333029 by twistor, MegaChriz: Extend mapping API to allow for defaults and multiple callbacks

Issue #1033202 by jamesdixon, jamsilver, twistor, james.williams, Steven Jones, vordude, j0rd, mErilainen, gmario, rickmanelius, imclean, dasjo, guillaumev, jlyon, gilgabar, elliotttf, mukesh.agarwal17, patcon, wesnick, Bevan, kreynen, Grayside, fago, spotzero: [Meta] Generic entity processor.

Issue #777888 by WorldFallz, liquidcms, firfin | timwood: Added UI to import views-style exportable (a.k.a. How to import importers?).

Issue #1147734 by philipnorton42, znerol, David_Rothstein, twistor | johnv: Added Import files in public://feeds/ vs. private://feeds/.

Issue #1424992 by stevector: Added implementation of hook_entity_info_alter() so that ->feed_nid() is available to Rules.

Issue #1213472 by paulgemini, Nigel_S, emarchak, Jorenm: Fixed Unsupported operand types in FeedsConfigurable.

Issue #1418382: Fixed unsubscribe requests to PuSH hubs failing due to transaction in node_delete().

Issue #1139676 by Dave Reid, cosmicdreams: Fixed feeds_alter() doesn't support modulename.feeds.inc files supported by feeds_hook_info().

Issue #1128418 by mongolito404, Niklas Fiekas, jief: Fixed Deprecated: Assigning the return value of new by reference is deprecated in feeds_include_library().

Issue #1044882 by rfay, Dave Reid: Fixed indexes for {feeds_item} are too long and can cause problems during install or uninstall.