Update zh_CN.lang for 1.7.10

Add some new stuff's translation, also revise some inappropriate translations.
One more thing, is the Springwater removed in 1.7.10 Bop? It appeared in game, but i just can't find it in the language file. If it was already removed, i will delete it.
Merge pull request #308 from ViKaleidoscope/patch-2

Update zh_CN.lang for 1.7.10