Go2將修改匯出規則

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Go2將修改匯出規則, 只有小寫字母和”_“開頭的不匯出.
中文等不區分大小寫標識符預設匯出.

A solution that's been kicking around for a while:

For Go 2 (can't do it before then): Change the definition to “lower case letters and _ are package-local; all else is exported”. Then with non-cased languages, such as Japanese, we can write 日本語 for an exported name and _日本語 for a local name. This rule has no effect, relative to the Go 1 rule, with cased languages. They behave exactly the same.

http://code.google.com/p/go/issues/detail?id=5763