CBD-720 Allow passing compactor option to drop deletes

Change-Id: I18f6c826d6cb697c3f4a443f00cf64006ce8428f
Reviewed-on: http://review.couchbase.org/23835
Reviewed-by: Volker Mische <volker.mische@gmail.com>
Reviewed-by: Filipe David Borba Manana <fdmanana@gmail.com>
Tested-by: Damien Katz <damien@couchbase.com>
MB-7413 Count # of seqs processed for initial build

The new seqs processed stat was only being computed for
incremental index updates. Account it for the initial
index build as well.

Change-Id: I9c71daec96cdb42b7dad76c9cacf068be6d60487
Reviewed-on: http://review.couchbase.org/24125
Reviewed-by: Volker Mische <volker.mische@gmail.com>
Tested-by: Filipe David Borba Manana <fdmanana@gmail.com>
Merge remote-tracking branch 'origin/2.0.1'

Change-Id: I2674e21fb4c662fe9105e0daa4d03f4e89490ad7