v2.10.3

Sandbox migration (#467)

* adding sandbox change migration

* adding winston slack logger

* v2.10.1

* remove wrong ticket ids

* 2.10.2

* disable exit and only lookup current event id

* 2.10.3

* Update 20171006005624_sandbox2017.js

* Update 20171006005624_sandbox2017.js

* update search