add summaries

Asterisk.2013/Asterisk.NET/Manager/AsteriskVersion.cs

@@ -1,5 +1,8 @@
 namespace AsterNET.Manager
 {
+    /// <summary>
+    ///     Asterisk Version
+    /// </summary>
     public enum AsteriskVersion
     {
         ASTERISK_1_0 = 10,

Asterisk.2013/Asterisk.NET/Manager/IActionVariable.cs

@@ -1,10 +1,10 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
+using System.Collections.Generic;
 
 namespace AsterNET.Manager
 {
+    /// <summary>
+    ///     IActionVariable
+    /// </summary>
     interface IActionVariable
     {
         Dictionary<string, string> GetVariables();

Asterisk.2013/Asterisk.NET/Manager/ManagerConnection.cs

@@ -13,7 +13,7 @@ using AsterNET.IO;
 namespace AsterNET.Manager
 {
     /// <summary>
-    /// Default implemention of the ManagerConnection interface.
+    /// Default implementation of the ManagerConnection interface.
     /// </summary>
     public class ManagerConnection
     {