Merge pull request #645 from kmod/cheetah_fix

Don't have cheetah_test look for system cheetah

test/extra/cheetah_test.py

@@ -6,6 +6,6 @@ create_virtenv(ENV_NAME, ["cheetah==2.4.4"], force_create = True)
 
 cheetah_exe = os.path.join(ENV_NAME, "bin", "cheetah")
 env = os.environ
-env["PATH"] = env["PATH"] + ":" + os.path.join(ENV_NAME, "bin")
+env["PATH"] = os.path.join(ENV_NAME, "bin")
 expected = [{'ran': 2138, 'errors': 4, 'failures': 53}, {'ran': 2138, 'errors': 232, 'failures': 53}]
 run_test([cheetah_exe, "test"], cwd=ENV_NAME, expected=expected, env=env)