streamline graphql schema + remove ldap internal

README.md

db/migrations/20190510220159_create_users.js

db/migrations/20190510221452_create_organic_graph.js

db/migrations/20190511004812_create_rel_group_message.js

db/migrations/20190511013800_create_requests.js

db/migrations/20190511013901_create_requests_coauthor.js

src/graphql/typeDefs/actions.graphql

src/graphql/typeDefs/objects.graphql

src/ldap/internal/basics.ts

src/ldap/internal/config.ts

src/ldap/internal/tools.ts