CBQE-0 support sherlock install on debian7

Change-Id: Iefbcf50b530189a6b25bfc01666e0240fba089bd
Reviewed-on: http://review.couchbase.org/44250
Reviewed-by: Thuan Nguyen <soccon@gmail.com>
Tested-by: Thuan Nguyen <soccon@gmail.com>