SURF unavailable in OpenCV 2.4.1

[campbellsan]

The SURF algorithm on which PiTeRs tracking depends is reported as unavailable in OpenCV 2.4.1.

Reported with: Raspberry Pi model B, with Raspbian 7.8, Python 2.7.3, bcm2835-v4l2

[campbellsan]

Replacing the SURF part. (from comment on issue #40)

What does this mean?

• SURF is ok and I can close this issue?
• You are replacing SURF because there is an issue with it?
• If yes, please clarify the issue, since I cannot reproduce a problem with the published code.