Merge new doc from 'reconverge' into 'fix_rlc'

db/migrations_v1/20180305111321_metaGroup_member_table.js

db/migrations_v1/20180307213043_fixes_and_messages.js

db/migrations_v1/20180309145434_supervision.js

db/migrations_v1/20180316003119_create_posts.js

...grations_v1/20180413024152_new_group_message_relations.js

db/migrations_v1/20180415160405_message_types.js

db/migrations_v1/20180530182824_drop_reciepient_column.js

db/migrations_v1/20180530191430_fix_spelling_recieve.js

db/migrations_v1/20180831165621_question_for_answer.js

db/migrations_v2/20181110100101_create_groups.js

...ions_v2/20181110100202_create_childtable_simple_groups.js

...ations_v2/20181110100303_create_childtable_meta_groups.js

...10100404_create_associativetable_metagroup_memberships.js

db/migrations_v2/20181110110101_create_messages.js

...ions_v2/20181110110202_create_childtable_announcements.js

db/migrations_v2/20181110110303_create_childtable_events.js

...ions_v2/20181110110404_create_childtable_private_posts.js

...grations_v2/20181110110505_create_childtable_questions.js

db/migrations_v2/20181110110606_create_childtable_answers.js

db/migrations_v2/20181110120101_create_requests.js