MB-11820: Move cbdocloader to bin directory

Change-Id: I323f5199c62ab6f004e7a867414936b4020b1c30
Reviewed-on: http://review.couchbase.org/40675
Reviewed-by: Bin Cui <bin.cui@gmail.com>
Tested-by: Bin Cui <bin.cui@gmail.com>
MB-12031: Merge commit '29b62768ee4ba945e9fccee46871a8cd909a8453' into 3.0.0

* commit '29b62768ee4ba945e9fccee46871a8cd909a8453':
  MB-11820: Move cbdocloader to bin directory

Change-Id: I7839b1c3a3fa031325719a9d4ee166d412ae4809