windows store sdk
windows 8 store and windows 8.1 store SDKs
Added updated files for Core

for both windows 8 and 8.1 store sdk
updated  win 8 store example

also copied core files
updated win 8.1 store example

also copied core files
copied core for 503 error handle
copied core for 503 error handle
Merge branch 'pt73540130' into develop