Encoding error with utf-8 database names

[matiasbattocchia]

I don't think this is a relevant problem but since I'm using utf-8 everywhere (model names, attributes) without obstacles I didn't expected it. Hence, I'm reporting it.

Moped version is 1.5.2.

Given an utf-8 database name,

production:
  sessions:
    default:
      database: producción
      hosts:
        - localhost

the following happens when trying to hit the database:

Encoding::CompatibilityError - incompatible character encodings: ASCII-8BIT and UTF-8:
        ../moped/protocol/message.rb:86:in `serialize_full_collection_name'
        ../moped/protocol/message.rb:286:in `serialize'
        ../moped/connection.rb:153:in `block in write'
        ../moped/connection.rb:151:in `each'
        ../moped/connection.rb:151:in `write'
        ../moped/node.rb:585:in `block (2 levels) in flush'
        ../moped/node.rb:150:in `ensure_connected'
        ../moped/node.rb:584:in `block in flush'
        ../moped/node.rb:599:in `logging'
        ../moped/node.rb:583:in `flush'
        ../moped/node.rb:572:in `process'
        ../moped/node.rb:372:in `query'
        ../moped/cursor.rb:138:in `block in load_docs'
        ../moped/session/context.rb:105:in `block in with_node'
        ../moped/cluster.rb:251:in `with_secondary'
        ../moped/session/context.rb:104:in `with_node'
        ../moped/cursor.rb:137:in `load_docs'
        ../moped/cursor.rb:25:in `each'
        ../moped/query.rb:76:in `each'
        ../moped/query.rb:76:in `each'