Updating json files to pin versions and build.cmd to pin KoreBuild and DNX

Author: pranavkm

build.cmd

@@ -16,11 +16,19 @@ copy %CACHED_NUGET% .nuget\nuget.exe > nul
 
 :restore
 IF EXIST packages\KoreBuild goto run
-.nuget\NuGet.exe install KoreBuild -ExcludeVersion -o packages -nocache -pre
+IF DEFINED BUILDCMD_RELEASE (
+    .nuget\NuGet.exe install KoreBuild -version 0.2.1-%BUILDCMD_RELEASE% -ExcludeVersion -o packages -nocache -pre
+) ELSE (
+    .nuget\NuGet.exe install KoreBuild -ExcludeVersion -o packages -nocache -pre
+)
 .nuget\NuGet.exe install Sake -version 0.2 -o packages -ExcludeVersion
 
 IF "%SKIP_DNX_INSTALL%"=="1" goto run
-CALL packages\KoreBuild\build\dnvm upgrade -runtime CLR -arch x86
+IF DEFINED BUILDCMD_RELEASE (
+    CALL packages\KoreBuild\build\dnvm install 1.0.0-%BUILDCMD_RELEASE% -runtime CLR -arch x86 -a default
+) ELSE (
+    CALL packages\KoreBuild\build\dnvm upgrade -runtime CLR -arch x86 
+)
 CALL packages\KoreBuild\build\dnvm install default -runtime CoreCLR -arch x86
 
 :run

samples/MemoryCacheConcurencySample/project.json

@@ -1,13 +1,13 @@
 {
     "dependencies": {
-        "Microsoft.Framework.Caching.Memory": "1.0.0-*"
+        "Microsoft.Framework.Caching.Memory": "1.0.0-beta5"
     },
     "commands": { "MemoryCacheConcurencySample": "MemoryCacheConcurencySample" },
     "frameworks": {
         "dnx451": { },
         "dnxcore50": {
             "dependencies": {
-                "System.Console": "4.0.0-beta-*"
+                "System.Console": "4.0.0-beta-23019"
             }
         }
     }