Update zh_CN.lang

Add translations for piston upgrade.
Merge pull request #569 from ViKaleidoscope/patch-2

Update zh_CN.lang
Added some basic player querying to the debug card.
Merge branch 'master' of github.com:MightyPirates/OpenComputers
Merge branch 'master' of github.com:MightyPirates/OpenComputers into master-MC1.7.10

Conflicts:
	src/main/scala/li/cil/oc/server/component/DebugCard.scala