Ensures that the package Icon is displayed for installed packages. Cleans up lots of try/catch/swallows in the packaging logic, adds better xml error handling (we really need a lot more though), ensures that if any part of the package installation fails, that angular bails and doesn't keep trying to install - same logic for installing forms.

src/Umbraco.Web/Models/ContentEditing/InstalledPackageModel.cs

@@ -29,5 +29,8 @@ namespace Umbraco.Web.Models.ContentEditing
 
         [DataMember(Name = "licenseUrl")]
         public string LicenseUrl { get; set; }
+
+        [DataMember(Name = "iconUrl")]
+        public string IconUrl { get; set; }
     }
 }