[vpython] Use catapult package versions.

Use catapult package versions for OpenCV and NumPy. These versions are
explicitly asserted by the "catapult" test framework, and versions
outside of this range will not successfully load.

Note the catapult version dependency in the definition.

BUG=chromium:762005
TEST=None

Change-Id: I4659e0b6c28c8fd043a8f42c6993a11f2473cdeb
Reviewed-on: https://chromium-review.googlesource.com/721423
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Daniel Jacques <dnj@chromium.org>
Cr-Commit-Position: refs/heads/master@{#509214}

.vpython

@@ -26,13 +26,26 @@ python_version: "2.7"
 
 # Used by:
 #   third_party/catapult
+#
+# This version must be compatible with the version range specified by
+# //third_party/catapult/telemetry/telemetry/internal/util/external_modules.py
 wheel: <
   name: "infra/python/wheels/psutil/${platform}_${py_python}_${py_abi}"
   version: "version:5.2.2"
 >
+
+# Used by:
+#   third_party/catapult
+#
+# This version must be compatible with the version range specified by
+# //third_party/catapult/telemetry/telemetry/internal/util/external_modules.py
+#
+# This version must also be compatible with the "numpy" version, as "cv2"
+# depends on "numpy". In this case, OpenCV@2.4.13.2 has been built against
+# numpy@1.11.3.
 wheel: <
   name: "infra/python/wheels/opencv_python/${platform}_${py_python}_${py_abi}"
-  version: "version:3.2.0.7"
+  version: "version:2.4.13.2"
   match_tag: <
     platform: "win32"
   >
@@ -51,7 +64,13 @@ wheel: <
     platform: "macosx_10_6_intel"
   >
 >
+
+# Used by:
+#   third_party/catapult
+#
+# This version must be compatible with the version range specified by
+# //third_party/catapult/telemetry/telemetry/internal/util/external_modules.py
 wheel: <
   name: "infra/python/wheels/numpy/${platform}_${py_python}_${py_abi}"
-  version: "version:1.12.1"
+  version: "version:1.11.3"
 >