add mariadb & mysql support

server/api/models/index.js

@@ -13,6 +13,7 @@ const db = {
   },
   connect (dbConf = config.db) {
     log.debug(`Connecting to DB: ${JSON.stringify(dbConf)}`)
+    dbConf.dialectOptions = { autoJsonMap: false }
     db.sequelize = new Sequelize(dbConf)
     return db.sequelize.authenticate()
   },

server/migrations/20191025152224-event_notifications.js

@@ -5,7 +5,7 @@ module.exports = {
     return queryInterface.createTable('event_notifications', {
       status: {
         type: Sequelize.ENUM,
-        values: ['new', 'sent', 'error'],
+        values: ['new', 'sent', 'error', 'sending'],
         defaultValue: 'new',
         index: true
       },