Ensure console color gets set back properly

Can't just assume that the foreground color should be black when we're done printing an error.
If you've got a terminal with a black background, you're in for a bad time.

src/gitnstats/Program.cs

@@ -66,14 +66,15 @@ private static int RunAnalysis(string repositoryPath, string branchName)
 
         private static void WriteError(string message)
         {
+            var currentColor = Console.ForegroundColor;
             Console.ForegroundColor = ConsoleColor.Red;
             try
             {
                 Console.Error.WriteLine(message);
             }
             finally
             {
-                Console.ForegroundColor = ConsoleColor.Black;
+                Console.ForegroundColor = currentColor;
             }
         }
     }

src/gitnstats/gitnstats.csproj

@@ -2,6 +2,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp1.1</TargetFramework>
+    <Version>1.0.1</Version>
     <RootNamespace>GitNStats</RootNamespace>
     <RuntimeIdentifiers>
       <RuntimeIdentifier>osx.10.12-x64</RuntimeIdentifier>