Correcting error messsages according to the instructions on dotnet#258

Author: Gabriel Nepomuceno

src/Microsoft.ML.Data/Dirty/PredictorBase.cs

@@ -19,7 +19,7 @@ public abstract class PredictorBase<TOutput> : IPredictorProducing<TOutput>
     {
         public const string NormalizerWarningFormat =
             "Ignoring integrated normalizer while loading a predictor of type {0}.{1}" +
-            "   Please contact tlcsupp for assistance with converting legacy models.";
+            "   Please go to https://aka.ms/MLNetIssue for assistance with converting legacy models.";
 
         protected readonly IHost Host;
 

src/Microsoft.ML.Maml/MAML.cs

@@ -183,16 +183,16 @@ internal static int MainCore(TlcEnvironment env, string args, bool alwaysPrintSt
                     if (count == 0)
                     {
                         // Didn't recognize any of the exceptions.
-                        ch.Error(MessageSensitivity.None, "***** Unexpected failure. Please contact 'tlcsupp' with details *****");
+                        ch.Error(MessageSensitivity.None, "***** Unexpected failure. Please go to https://aka.ms/MLNetIssue annd register the error details *****");
                         if (isDumpSaved)
                         {
-                            ch.Error(MessageSensitivity.None, "***** Error log has been saved to '{0}', please send this file to 'tlcsupp' *****",
+                            ch.Error(MessageSensitivity.None, "***** Error log has been saved to '{0}', please register the error at https://aka.ms/MLNetIssue *****",
                                 dumpFilePath);
                         }
                     }
                     else if (isDumpSaved)
                     {
-                        ch.Error(MessageSensitivity.None, "Error log has been saved to '{0}'. Please send this file to 'tlcsupp' if you need assistance.",
+                        ch.Error(MessageSensitivity.None, "Error log has been saved to '{0}'. please register the error at https://aka.ms/MLNetIssue",
                             dumpFilePath);
                     }