CBLT-298:  jenkins jobs renamed to prepare_release_android_master, prepare_release_android_100

Change-Id: Ia460ff355caea8f342d0aa866dd3f094b4a47368
Reviewed-on: http://review.couchbase.org/37868
Reviewed-by: Philip Labee <philip@couchbase.com>
Tested-by: Philip Labee <philip@couchbase.com>