Revert "Revert "Updating to the newest Roslyn packages""

This reverts commit 87e89befc8.

src/Microsoft.AspNetCore.Mvc.Dnx/project.json

@@ -16,10 +16,7 @@
     "Microsoft.Dnx.Compilation.CSharp.Common": "1.0.0-*",
     "Microsoft.Dnx.Compilation.CSharp.Abstractions": "1.0.0-*",
     "Microsoft.Extensions.DependencyInjection": "1.0.0-*",
-    "Microsoft.Extensions.PlatformAbstractions.Dnx": "1.0.0-*",
-    "System.IO": "4.1.0-*",
-    "System.Reflection": "4.1.0-*",
-    "System.Runtime": "4.1.0-*"
+    "Microsoft.Extensions.PlatformAbstractions.Dnx": "1.0.0-*"
   },
   "frameworks": {
     "net451": {},

src/Microsoft.AspNetCore.Mvc.Razor/project.json

@@ -16,7 +16,7 @@
   "dependencies": {
     "Microsoft.AspNetCore.Mvc.Razor.Host": "1.0.0-*",
     "Microsoft.AspNetCore.Mvc.ViewFeatures": "1.0.0-*",
-    "Microsoft.CodeAnalysis.CSharp": "1.1.0-rc1-20151109-01",
+    "Microsoft.CodeAnalysis.CSharp": "1.3.0-*",
     "Microsoft.Extensions.FileProviders.Composite": "1.0.0-*",
     "Microsoft.Extensions.HashCodeCombiner.Sources": {
       "version": "1.0.0-*",
@@ -29,11 +29,7 @@
     "Microsoft.Extensions.PropertyHelper.Sources": {
       "version": "1.0.0-*",
       "type": "build"
-    },
-    "System.Collections": "4.0.11-*",
-    "System.IO": "4.1.0-*",
-    "System.Reflection": "4.1.0-*",
-    "System.Threading": "4.0.11-*"
+    }
   },
   "frameworks": {
     "net451": {