RUBY-1048 String#bytes on JRuby and MRI < 2.0 return an Enumerator

Author: estolfo

lib/mongo/socket/ssl.rb

@@ -94,7 +94,7 @@ def initialize(host, port, host_name, timeout, family, options = {})
       # @since 2.0.0
       def readbyte
         handle_errors do
-          byte = socket.read(1).bytes[0]
+          byte = socket.read(1).bytes.to_a[0]
           byte.nil? ? raise(EOFError) : byte
         end
       end