CBLT-298:  jenkins jobs renamed to prepare_release_android_master, prepare_release_android_100

Change-Id: Icb3df66d5b5d3848177d2938d31ba8e21c8e6e9f
Reviewed-on: http://review.couchbase.org/37870
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>