XD-1889 UI Needs to handle the finer-grained deployment statuses

* Add status column to definitions table
* Use the new statuses to disable/enable buttons
* Add popover illustrating and describing the statuses

Jira: https://jira.spring.io/browse/XD-1889
Created JIRA https://jira.spring.io/browse/XD-1902 to avoid using this.