v0.13.0

• Added batch download support to Ezid::Client (see README).
• Added HTTP timeout option (default: 300 secs/5 min)

v0.12.0

• Added port configuration setting (default: 443).
• The use_ssl configuration setting works differently - it is now intended to be used only to indicate that a connection on a non-standard port (i.e., not 443) should use ssl. For example, if the port is set to 8443, then use_ssl should be set to true in order to require the connection to use SSL; otherwise SSL would not be used. However, SSL cannot be turned off if the port is the default 443. See the README for more examples of how to configure this setting.
• A lot of internal refactoring of requests and responses (not affecting the public APIs of Ezid::Client or Ezid::Identifier).