Update the build template

- Workaround myget feed issue
- Updated build.cmd to new standard
- Added new things to git ignore

build-template/.gitignore

@@ -20,3 +20,5 @@ nuget.exe
 *.userprefs
 *DS_Store
 *.ncrunchsolution
+*.*sdf
+*.ipch

build-template/NuGet.Config

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <configuration>
   <packageSources>
-    <add key="AspNetVNext" value="https://www.myget.org/F/aspnetvnext/" />
+    <add key="AspNetVNext" value="https://www.myget.org/F/aspnetvnext/api/v2" />
     <add key="NuGet.org" value="https://nuget.org/api/v2/" />
   </packageSources>
   <packageSourceCredentials>