Sandboxed ReviewRequestApprovalHook and added test cases

Review Request #5677 — Created April 5, 2014 and submitted — Latest diff uploaded

Information

Review Board
master

Reviewers

Sandboxed ReviewRequestApprovalHook and added test cases

Added Sandbox Extension and test hook.

Unit testing, added to test suites in reviewboard/extensions/tests.py

Ran unit tests with and without the sandboxing