CYB-303, Add Sidekiq restart to deploy script

https://jira.ets.berkeley.edu/jira/browse/CYB-303

If script decides to do deploy:
* record pid, stop Sidekiq and clear its queue
* after Apache restart, start Sidekiq

I did little cleanup, too.
We've tagged the 1.0.0 release as a tag and will be continuing development in master. I'm not entirely sure what this is doing, but should this reference the stable tag or continue referencing the master branch?