chore: upgrade sequelize (#965)

* 0.18.0

* chore: Upgrade sequelize 4 -> 5

* fix: migrations v5 support

* fix: Majority of test failures

* fix: the rest of v5 tests

server/sequelize.js

@@ -3,9 +3,10 @@ import Sequelize from 'sequelize';
 import EncryptedField from 'sequelize-encrypted';
 import debug from 'debug';
 
-const secretKey = process.env.SECRET_KEY;
-
-export const encryptedFields = EncryptedField(Sequelize, secretKey);
+export const encryptedFields = EncryptedField(
+  Sequelize,
+  process.env.SECRET_KEY
+);
 
 export const DataTypes = Sequelize;
 export const Op = Sequelize.Op;
@@ -13,5 +14,4 @@ export const Op = Sequelize.Op;
 export const sequelize = new Sequelize(process.env.DATABASE_URL, {
   logging: debug('sql'),
   typeValidation: true,
-  operatorsAliases: false,
 });