Renamed Builder.ServiceProvider to Builder.ApplicationServices

- Made things consistent with HttpContext.ApplicationServices

src/Microsoft.AspNet.Abstractions/IBuilder.cs

@@ -4,7 +4,7 @@ namespace Microsoft.AspNet.Abstractions
 {
     public interface IBuilder
     {
-        IServiceProvider ServiceProvider { get; set; }
+        IServiceProvider ApplicationServices { get; set; }
         IServerInformation Server { get; set; }
 
         IBuilder Use(Func<RequestDelegate, RequestDelegate> middleware);

src/Microsoft.AspNet.PipelineCore/Builder.cs

@@ -11,16 +11,16 @@ namespace Microsoft.AspNet.PipelineCore
 
         public Builder(IServiceProvider serviceProvider)
         {
-            ServiceProvider = serviceProvider;
+            ApplicationServices = serviceProvider;
         }
 
         private Builder(Builder builder)
         {
-            ServiceProvider = builder.ServiceProvider;
+            ApplicationServices = builder.ApplicationServices;
             Server = builder.Server;
         }
 
-        public IServiceProvider ServiceProvider { get; set; }
+        public IServiceProvider ApplicationServices { get; set; }
         public IServerInformation Server { get; set; }
 
         public IBuilder Use(Func<RequestDelegate, RequestDelegate> middleware)