Added comments to the files that are generated. Fixed putting the semi-colon on the end of the using line.

Author: dparvin

src/build/Versioning.Common.targets

@@ -61,7 +61,8 @@
 
     <!-- C# Lines -->
     <ItemGroup Condition="'$(Language)' == 'C#'">
-      <_AssemblyInfoLines Include="using System.Reflection;" />
+      <_AssemblyInfoLines Include="// Auto-generated by Versioning.Common (C#)" />
+      <_AssemblyInfoLines Include="using System.Reflection&#59;" />
       <_AssemblyInfoLines Include="[assembly: AssemblyVersion(&quot;$(AssemblyVersion)&quot;)]" />
       <_AssemblyInfoLines Include="[assembly: AssemblyFileVersion(&quot;$(FileVersion)&quot;)]" />
       <_AssemblyInfoLines Condition="'$(TargetFramework)' != 'net35'" 
@@ -70,6 +71,7 @@
 
     <!-- VB.NET Lines -->
     <ItemGroup Condition="'$(Language)' == 'VB'">
+      <_AssemblyInfoLines Include="// Auto-generated by Versioning.Common (VB.NET)" />
       <_AssemblyInfoLines Include="Imports System.Reflection" />
       <_AssemblyInfoLines Include="&lt;Assembly: AssemblyVersion(&quot;$(AssemblyVersion)&quot;)&gt;" />
       <_AssemblyInfoLines Include="&lt;Assembly: AssemblyFileVersion(&quot;$(FileVersion)&quot;)&gt;" />
@@ -78,6 +80,7 @@
     </ItemGroup>
 
     <ItemGroup Condition="'$(Language)' == 'F#'">
+      <_AssemblyInfoLines Include="// Auto-generated by Versioning.Common (F#)" />
       <_AssemblyInfoLines Include="open System.Reflection" />
       <_AssemblyInfoLines Include="[&lt;assembly: AssemblyVersion(&quot;$(AssemblyVersion)&quot;)&gt;]" />
       <_AssemblyInfoLines Include="[&lt;assembly: AssemblyFileVersion(&quot;$(FileVersion)&quot;)&gt;]" />
@@ -93,7 +96,9 @@
     <WriteLinesToFile
       File="$(_GeneratedAssemblyInfoFile)"
       Overwrite="true"
-      Lines="@(_AssemblyInfoLines)" />
+      Lines="@(_AssemblyInfoLines)" 
+      Encoding="UTF-8"
+      NewLine="$(MSBuildNewLine)" />
 
     <ItemGroup>
       <Compile Include="$(_GeneratedAssemblyInfoFile)" />