checkstyle disabled

[Ted Dunning]

Sebastian,

I was the one who turned off checkstyle.

Here is my (minimal) rationale.

http://mail-archives.apache.org/mod_mbox/mahout-dev/201212.mbox/%3CCAJwFCa3y6m8xiRW%3DcqTG29fOH5TWeTO%2Bi1YYFzv%3DQSMSk0SinQ%40mail.gmail.com%3E