Change user information in db

migrations/1_create_users.js

@@ -2,9 +2,9 @@ exports.up = function (knex) {
   return knex.schema
     .createTable('users', function (t) {
       t.increments('id');
-      t.string('password-hash');
-      t.string('slack-user-name').notNullable();
-      t.string('npm-user-name').notNullable();
+      t.string('slack-user-id').notNullable();
+      t.string('slack-team-id').notNullable();
+      t.string('npm-token-hashed');
     });
 };