Use the deprecated API on Review Board 1.5.0 and 1.5.1.
Review Request #2084 — Created Jan. 28, 2011 and submitted
Use the deprecated API on Review Board 1.5.0 and 1.5.1. The new API wasn't really worked out until Review Board 1.5.2. We're a bit more selective now and only use the new API if using 1.5.2 or higher. This adds some unit tests to ensure we're parsing this correctly.