Add ASF 2.0 license file
Add ASF 2.0 license file

cloudant/couchdb-mango,cloudant/mango,kxepal/couchdb-mango,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,fkaempfer/couchdb,apache/couchdb-mango,fkaempfer/couchdb