Issue #2575135 by quietone, ckaotik, olegel, mikeryan, larowlan: Dummy map/message tables being created

Issue #2683435 by quietone, Jo Fitzgerald, hussainweb, mikeryan, Steven Jones, alexpott, phenaproxima, Sam152, Pavan B S, michael_wojcik, Prashant.c, heddn, benjy: CCK does not exist in Drupal 7, rename Migrate's cckfield plugins to field plugins

Issue #2673960 by Jo Fitzgerald, hussainweb, phenaproxima, mikeryan, quietone, vasi: Unable to migrate D7 User cck fields

Revert "Issue #2683435 by hussainweb, mikeryan, quietone, alexpott, michael_wojcik, phenaproxima, benjy: Consider renaming Migrate's cckfield plugins"

This reverts commit 24f816a1.

Issue #2683435 by hussainweb, mikeryan, quietone, alexpott, michael_wojcik, phenaproxima, benjy: Consider renaming Migrate's cckfield plugins

Issue #2665992 by alexpott, klausi, heykarthikwithu, xjm, tstoeckler: @file is not required for classes, interfaces and traits

Issue #2666650 by alexpott, benjy: Inject migration and source plugin managers into the migration plugins

Issue #2625696 by chx, benjy, alexpott, catch, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities

Revert "Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities"

This reverts commit 694994fe.

This reverts commit f71ec898.

Issue #2625696 by chx, alexpott, benjy, mikeryan, andypost, phenaproxima: Make migrations themselves plugins instead of config entities