References #148
The js and css config files are directly placed in /htmlarea directory. The old ones downunder are not reset with this commit, until we give OK to go.
The lang constant will be placed to addlang.txt in a 2cd commit, since this may change and there is already a pending constant.
I have not added another option by now to explicitly choose the s9y configs in htmlarea, if someone has custom ones in 2k11/admin and wants to switch back to the origins. Is this really a real and valid user case?
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