Utilities/Release: Update default binary distribution dir to v3.0

Utilities/Release/upload_release.cmake

@@ -3,7 +3,7 @@ if(NOT DEFINED PROJECT_PREFIX)
   set(PROJECT_PREFIX cmake-)
 endif()
 if(NOT VERSION)
- set(VERSION 2.8)
+ set(VERSION 3.0)
 endif()
 set(dir "v${VERSION}")
 if("${VERSION}" MATCHES "master")