Make FaceRecognizer require OpenCV <= v2.4.8.
Make FaceRecognizer require OpenCV <= v2.4.8.

For some reason OpenCV shipped a broken branch build on Ubuntu 2.4.2 64
bit.

Thanks to @gluxon for noticing this:
https://github.com/peterbraden/node-opencv/issues/56#issuecomment-20263153

Rather than try and be clever, I'm just gonna up the version
requirements.

This fixes #56 #41 #105 #240 and #275

tualo/node-opencv,piercus/node-opencv,borromeotlhs/node-opencv,autographer/node-opencv,Queuecumber/node-opencv,Queuecumber/node-opencv,cascade256/node-opencv,autographer/node-opencv,akshonesports/node-opencv,peterbraden/node-opencv,borromeotlhs/node-opencv,bmathews/node-opencv,madshall/node-opencv,mvines/node-opencv,bmathews/node-opencv,peterbraden/node-opencv,Queuecumber/node-opencv,cascade256/node-opencv,webcats/node-opencv,autographer/node-opencv,bmathews/node-opencv,keeganbrown/node-opencv,bmathews/node-opencv,cascade256/node-opencv,keeganbrown/node-opencv,piercus/node-opencv,webcats/node-opencv,keeganbrown/node-opencv,mvines/node-opencv,madshall/node-opencv,mvines/node-opencv,tualo/node-opencv,akshonesports/node-opencv,Queuecumber/node-opencv,peterbraden/node-opencv,cascade256/node-opencv,bmathews/node-opencv,akshonesports/node-opencv,autographer/node-opencv,mvines/node-opencv,Queuecumber/node-opencv,tualo/node-opencv,keeganbrown/node-opencv,webcats/node-opencv,peterbraden/node-opencv,autographer/node-opencv,tualo/node-opencv,akshonesports/node-opencv,mvines/node-opencv,tualo/node-opencv,cascade256/node-opencv,borromeotlhs/node-opencv,piercus/node-opencv,autographer/node-opencv,borromeotlhs/node-opencv,Queuecumber/node-opencv,piercus/node-opencv,akshonesports/node-opencv,cascade256/node-opencv,webcats/node-opencv,tualo/node-opencv,madshall/node-opencv,keeganbrown/node-opencv,madshall/node-opencv,madshall/node-opencv,akshonesports/node-opencv,piercus/node-opencv,akshonesports/node-opencv,bmathews/node-opencv,mvines/node-opencv,piercus/node-opencv,keeganbrown/node-opencv,madshall/node-opencv