Install bzr and avoid doing the sed for read.
Install bzr and avoid doing the sed for read.

bzr is needed for dependencies like labix.org/mgo that
use bzr for source control.

The sed that comments out the read commands have caused
issues for me. Using the UNATTENDED option seems more
natural.

karalabe/xgo,zchee/xgo,karalabe/xgo,chrisfranko/xgo,chrisfranko/xgo,zchee/xgo,zchee/xgo,karalabe/xgo,zchee/xgo,karalabe/xgo