Merge pull request #4709 from BaronGreenback/PluginDowngrade

(cherry picked from commit 406ae3e43a)
Signed-off-by: Joshua M. Boniface <joshua@boniface.me>

MediaBrowser.Common/Updates/InstallationEventArgs.cs

@@ -1,14 +1,21 @@
-#pragma warning disable CS1591
-
 using System;
 using MediaBrowser.Model.Updates;
 
 namespace MediaBrowser.Common.Updates
 {
+    /// <summary>
+    /// Defines the <see cref="InstallationEventArgs" />.
+    /// </summary>
     public class InstallationEventArgs : EventArgs
     {
+        /// <summary>
+        /// Gets or sets the <see cref="InstallationInfo"/>.
+        /// </summary>
         public InstallationInfo InstallationInfo { get; set; }
 
+        /// <summary>
+        /// Gets or sets the <see cref="VersionInfo"/>.
+        /// </summary>
         public VersionInfo VersionInfo { get; set; }
     }
 }