Issue #2975461 by quietone, Matroskeen, Lendude: Convert query string to array for d6 menu_link migration

Issue #3008028 by quietone, bserem, naresh_bavaskar, ravi.shankar, daffie, Gábor Hojtsy, phenaproxima, catch, Zekvyrin, stefanos.petrakis: Migrate D7 i18n menu links

Issue #2936365 by quietone, mikelutz, heddn, larowlan, masipila, effulgentsia, maxocub, Gábor Hojtsy, webchick, phenaproxima, jhodgdon, catch: Migrate UI - allow modules to declare the state of their migrations

Issue #3031528 by mr.baileys, heddn, mikelutz, alexpott: LinkUri source value should not be an array

Issue #2953360 by quietone, heddn, yogeshmpawar, phenaproxima, Gábor Hojtsy, maxocub, catch, alexpott, masipila: Experimental migrate_drupal_multilingual module

Issue #2960013 by quietone, Jo Fitzgerald, mikeryan, alexpott: i18n menu links translation in wrong directory

Issue #2225587 by quietone, Jo Fitzgerald, alexpott, heddn, Pavan B S, maxocub, phenaproxima, Gábor Hojtsy, ao2: Migrate D6 i18n menu links

Revert "Issue #2225587 by quietone, Jo Fitzgerald, heddn, Pavan B S, maxocub, phenaproxima, Gábor Hojtsy, ao2, alexpott: Migrate D6 i18n menu links"

This reverts commit 66480d7f.

Issue #2225587 by quietone, Jo Fitzgerald, heddn, Pavan B S, maxocub, phenaproxima, Gábor Hojtsy, ao2, alexpott: Migrate D6 i18n menu links

Issue #2912353 by maxocub, alexpott, heddn, phenaproxima, quietone: Handle menu_items related to Drupal 6 and 7 node translations with different IDs

Issue #2711099 by heddn, Jo Fitzgerald, edysmp, edgewl2, alexpott, Charlotte17, mikeryan, masipila, quietone, maxocub, phenaproxima: Categorize migrations according to their type

Issue #2876085 by heddn, maxocub, phenaproxima, Jo Fitzgerald, vasi, quietone, yoroy, masipila, larowlan, neclimdul, krystalcode, catch: Before upgrading, audit for potential ID conflicts

Issue #2917883 by quietone, TR, Jo Fitzgerald, masipila, phenaproxima: Rename 'migration_templates' directories in core modules to 'migrations'