2.1.0.beta

• RUBY-886: Verify server certificates by default when ssl=true.
• RUBY-888: Add max_time_ms as an option to CRUD operations.
• RUBY-894: Ensure that the driver complies with the CRUD specification, includes adding many CRUD methods onto the Collection class.
• RUBY-909: Make #parallel_scan available on a Collection.
• RUBY-910: Add #close and #reconnect methods on a Client.
• RUBY-912: Use electionId to detect stale primaries.
• RUBY-916: Don't use a single global logger.
• RUBY-926: Expose setting cursor flags to the public API.
• RUBY-951: Confirm that the driver complies with the ConnectionString specification.
• RUBY-948: Warn for unrecognized options in a URI instead of raising an Exception.
• RUBY-959: Mark an unreachable mongos as Unknown, don't stop monitoring it or remove it from the Cluster.
• RUBY-901: Handle Errno::ECONNREFUSED exceptions