Update samples

Author: JunTaoLuo

samples/HelloWorld/project.json

@@ -4,7 +4,8 @@
   },
   "dependencies": {
     "Microsoft.Net.Http.Server": "0.1.0-*",
-    "Microsoft.Net.WebSockets.Server": "0.1.0-*"
+    "Microsoft.Net.WebSockets.Server": "0.1.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "commands": {
     "sample": "HelloWorld"
@@ -13,7 +14,7 @@
     "net451": {},
     "netstandardapp1.5": {
       "dependencies": {
-        "NETStandard.Library": "1.0.0-*"
+        "NETStandard.Library": "1.5.0-*"
       },
       "imports": [
         "dnxcore50"

samples/HotAddSample/project.json

@@ -2,7 +2,8 @@
   "version": "1.0.0-*",
   "dependencies": {
     "Microsoft.AspNetCore.Server.WebListener": "0.1.0-*",
-    "Microsoft.Extensions.Logging.Console": "1.0.0-*"
+    "Microsoft.Extensions.Logging.Console": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "compilationOptions": {
     "emitEntryPoint": true
@@ -14,7 +15,7 @@
     "net451": {},
     "netstandardapp1.5": {
       "dependencies": {
-        "NETStandard.Library": "1.0.0-*"
+        "NETStandard.Library": "1.5.0-*"
       },
       "imports": [
         "dnxcore50"

samples/SelfHostServer/project.json

@@ -1,7 +1,8 @@
 {
   "dependencies": {
     "Microsoft.AspNetCore.Server.WebListener": "0.1.0-*",
-    "Microsoft.Extensions.Logging.Console": "1.0.0-*"
+    "Microsoft.Extensions.Logging.Console": "1.0.0-*",
+    "Microsoft.NETCore.Platforms": "1.0.1-*"
   },
   "compilationOptions": {
     "emitEntryPoint": true
@@ -13,7 +14,7 @@
     "net451": {},
     "netstandardapp1.5": {
       "dependencies": {
-        "NETStandard.Library": "1.0.0-*"
+        "NETStandard.Library": "1.5.0-*"
       },
       "imports": [
         "dnxcore50"