get area handle and name through method which is easier to override
fix theme name in tinymce plugin translations
Revert "get area handle and name through method which is easier to override"

This reverts commit 02d027478f61968632bfed630b70cc62f6a9d21f.
translations for simple theme added
Merge pull request #1671 from Remo/tinymce-lang-packs

Tinymce lang packs handle fixed