release(2.1.0)

changelog.md

-# Next
+# 2.1.0
 - [BUG] Enable standards conforming strings on connection in postgres. Adresses [#3545](https://github.com/sequelize/sequelize/issues/3545)
 - [BUG] instance.removeAssociation(s) do not fire the select query twice anymore
 - [BUG] Error messages thrown by the db in languages other than english do not crash the app anymore (mysql, mariadb and postgres only) [#3567](https://github.com/sequelize/sequelize/pull/3567)

package.json

 {
   "name": "sequelize",
   "description": "Multi dialect ORM for Node.JS",
-  "version": "2.0.6",
+  "version": "2.1.0",
   "author": "Sascha Depold <sascha@depold.com>",
   "contributors": [
     {