is there some built-in tools or plugins to keeping all my page-scripts in one file?
I found some topics in play mail list, but all of them has no answer to this question.
Moreover there is google closure compiler somewhere deep, but looks like that nobody except framework developers don’t really know about how to make it work.
Any way, it will be pretty if there are some tools which able at least to concatenate all my css together in one file.
Did you read the documentation for Closure? It says:
Note: I didn’t check it.