fix build script

Author: yyx990803

build/banner.js

@@ -1,5 +1,5 @@
 var version =
-  process.env.VUE_ROUTER_VERSION ||
+  process.env.VERSION ||
   require('../package.json').version
 
 module.exports =

build/release.sh

@@ -6,7 +6,7 @@ echo    # (optional) move to a new line
 if [[ $REPLY =~ ^[Yy]$ ]]
 then
     echo "Releasing $VERSION ..."
-    npm run build
+    VERSION=$VERSION npm run build
     git add -A
     git commit -m "[build] $VERSION"
     npm version $VERSION --message "[release] $VERSION"