Fix deploy script for campfire message

* Move campfire finish deploy message to
be execute after unicorn:reexec. this will
be executed after deloyment is finish.
![screen shot 2014-03-25 at 10 07 14 am](https://f.cloud.github.com/assets/1048714/2514524/b9f36e34-b439-11e3-835d-30b7ebc835fa.png)