zendesk/samson — pull request #139 by grosser (2014-10-08 21:29:05+00:00)
Title: prevent duplicate deploys and make pending deploys easier to spot

treat pending deploys like running deploys -> nobody else can start a deploy,
also giving them more visibility and preventing duplicate deploys when multiple people used to have pendin deploys

@steved555 @pswadi-zendesk @bolddane @jwswj

### References
- https://zendesk.atlassian.net/browse/SAMSON-113

### Risks
- None