Let VS assign a port for the MVC 6.0 project

- also add commented-out connection string for IIS deployment

src/MusicStore.Spa/MusicStore.Spa.kproj

@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup>
     <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">14.0</VisualStudioVersion>
@@ -12,6 +12,7 @@
   </PropertyGroup>
   <PropertyGroup>
     <SchemaVersion>2.0</SchemaVersion>
+    <DevelopmentServerPort>1575</DevelopmentServerPort>
   </PropertyGroup>
   <Import Project="$(VSToolsPath)\AspNet\Microsoft.Web.AspNet.targets" Condition="'$(VSToolsPath)' != ''" />
-</Project>
+</Project>

src/MusicStore/config.json

@@ -3,6 +3,8 @@
     "DefaultAdminPassword": "YouShouldChangeThisPassword1!",
     "Data": {
         "DefaultConnection": {
+            // Use a shared (and running) LocalDB database when executing in IIS e.g.
+            // "Server=(localdb)\\.\\IIS_DB;Database=MusicStore;Trusted_Connection=False;MultipleActiveResultSets=true;User ID=iis_login;Password=********"
             "Connectionstring": "Server=(localdb)\\MSSQLLocalDB;Database=MusicStore;Trusted_Connection=True;MultipleActiveResultSets=true"
         }
     },