Add logging on inline comment post error.

Author: grokys

src/GitHub.InlineReviews/GitHub.InlineReviews.csproj

@@ -333,6 +333,10 @@
       <HintPath>..\..\packages\Microsoft.VisualStudio.Validation.14.1.111\lib\net45\Microsoft.VisualStudio.Validation.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="NLog, Version=3.1.0.0, Culture=neutral, PublicKeyToken=5120e14c03d0593c, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\NLog.3.1.0.0\lib\net45\NLog.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="rothko, Version=0.0.2.0, Culture=neutral, PublicKeyToken=9f664c41f503810a, processorArchitecture=MSIL">

src/GitHub.InlineReviews/Services/PullRequestSessionService.cs

@@ -9,6 +9,7 @@
 using GitHub.Primitives;
 using GitHub.Services;
 using LibGit2Sharp;
+using NLog;
 
 namespace GitHub.InlineReviews.Services
 {

src/GitHub.InlineReviews/ViewModels/CommentViewModel.cs

@@ -7,6 +7,7 @@
 using GitHub.Extensions;
 using GitHub.Models;
 using GitHub.UI;
+using NLog;
 using Octokit;
 using ReactiveUI;
 
@@ -17,6 +18,7 @@ namespace GitHub.InlineReviews.ViewModels
     /// </summary>
     public class CommentViewModel : ReactiveObject, ICommentViewModel
     {
+        static readonly Logger log = LogManager.GetCurrentClassLogger();
         string body;
         string errorMessage;
         bool isReadOnly;
@@ -167,6 +169,7 @@ async Task DoCommitEdit(object unused)
                 }
 
                 ErrorMessage = message;
+                log.Error("Error posting inline comment.", e);
             }
         }
 

src/GitHub.InlineReviews/packages.config

@@ -30,6 +30,7 @@
   <package id="Microsoft.VisualStudio.Utilities" version="14.3.25407" targetFramework="net452" />
   <package id="Microsoft.VisualStudio.Validation" version="14.1.111" targetFramework="net452" />
   <package id="Microsoft.VSSDK.BuildTools" version="14.3.25407" targetFramework="net452" developmentDependency="true" />
+  <package id="NLog" version="3.1.0.0" targetFramework="net461" />
   <package id="Rothko" version="0.0.2-ghfvs" targetFramework="net461" />
   <package id="Rx-Core" version="2.2.5-custom" targetFramework="net461" />
   <package id="Rx-Interfaces" version="2.2.5-custom" targetFramework="net461" />