React to update CoreCLR packages

aspnet/Coherence#97

Author: JunTaoLuo

src/Microsoft.EntityFrameworkCore.Relational/project.json

@@ -43,7 +43,7 @@
       ],
       "dependencies": {
         "Microsoft.CSharp": "4.0.1-*",
-        "System.Data.Common": "4.0.1-*",
+        "System.Data.Common": "4.1.0-*",
         "System.Diagnostics.DiagnosticSource": "4.0.0-*",
         "System.Text.RegularExpressions": "4.1.0-*"
       }

src/Microsoft.EntityFrameworkCore/project.json

@@ -21,7 +21,7 @@
     "Microsoft.Extensions.DependencyInjection": "1.0.0-*",
     "Microsoft.Extensions.Logging": "1.0.0-*",
     "Remotion.Linq": "2.0.2",
-    "System.Collections.Immutable": "1.1.37"
+    "System.Collections.Immutable": "1.2.0-*"
   },
   "frameworks": {
     "net451": {