Use the deprecated API on Review Board 1.5.0 and 1.5.1.

Review Request #2084 — Created Jan. 28, 2011 and submitted

Information

RBTools
master

Reviewers

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.