reverting server changes

At @webron's suggestion, to be tackled in a separate PR since example needs to be addressed.

Author: earth2marsh

versions/3.0.md

@@ -311,7 +311,7 @@ url: http://www.apache.org/licenses/LICENSE-2.0.html
 
 #### <a name="serverObject"></a>Server Object
 
-An object representing a list of one or more servers.
+An object representing a Server.
 
 ##### Fixed Fields