Enterprise code review capability in Stash

Stash is very light and fast. But we find that it's lacking some much needed code review features that we see on others. The main features we are looking for are 'enable code review status transition' and 'be able to see diff between two incremental commits'.

Currently the only way to communicate with change owner is by leaving comments in pull request. This update can be buried in the huge volume of email Stash sent out on all the activities. By adding a "Done reviewing" button, for example, which in turn move the code review to a new state, will allow change owner to add more accurate email filter to get notified on the status change right away. This will free user from checking the pull request frequently to find out the updates.

Crucible allow user to see the incremental change between any number of commits for a code review. We would like to see the same feature in Stash as well.