Fixed PHP warning, added check for allowed characters in variable name

Aleksander Machniak

2012-07-23 c9dcb83132da6df4e601f5991727b010a08766d6

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tinyMCE.addI18n('en.autosave',{ 
restore_content: "Restore auto-saved content", 
warning_message: "If you restore the saved content, you will lose all the content that is currently in the editor.\n\nAre you sure you want to restore the saved content?" 
});