Add fixtures to be used for review request resource tests.

Review Request #1964 — Created Dec. 4, 2010 and submitted

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Review Board
master

Reviewers

Add fixtures to be used for review request resource tests.

In order to test ReviewRequestResource with local site info, we need some new
test fixtures. This change adds those and updates existing tests to not break
due to the particular queries they're using.
Ran unit tests.