Add python2.6 and python2.6-dev for pysqlite et al; add lsb-release to support cbdeps.

Change-Id: Id43523260da79e8deac6e7ba7b4ec9f650b29eda
Reviewed-on: http://review.couchbase.org/40319
Reviewed-by: Chris Hillery <ceej@couchbase.com>
Tested-by: Chris Hillery <ceej@couchbase.com>