release(2.0.6)

changelog.md

-# Next
+# 2.0.6
 - [BUG] Fix for newlines in hstore [#3383](https://github.com/sequelize/sequelize/issues/3383)
 - [BUG] Fix unique key handling in Model.update [#3474](https://github.com/sequelize/sequelize/issues/3474)
 - [BUG] Fix issue with Model.create() using fields not specifying and non-incremental primary key [#3458](https://github.com/sequelize/sequelize/issues/3458)

package.json

 {
   "name": "sequelize",
   "description": "Multi dialect ORM for Node.JS",
-  "version": "2.0.5",
+  "version": "2.0.6",
   "author": "Sascha Depold <sascha@depold.com>",
   "contributors": [
     {