Fix docs configuration
Fix docs configuration

- Update copyright to include 2015
- Change from 'default' to 'classic' theme (warns otherwise in newer
  versions)

Change-Id: I48445395fdc51b287bc85cfcd1b98e73d25dc2ab
Reviewed-on: http://review.couchbase.org/50778
Tested-by: Mark Nunberg <dab05a0fe859c5cb93882b2a75a0d613501b07be@couchbase.com>
Reviewed-by: Dave Rigby <a09264da4832c7ff1d3bf1608a19f4b870f93750@couchbase.com>
Reviewed-by: Volker Mische <fb414f8ac0dbbf87663550ae4ef5fc95b1041941@gmail.com>

couchbase/couchbase-python-client,couchbase/couchbase-python-client,mnunberg/couchbase-python-client,mnunberg/couchbase-python-client