Remove type or make it possible in addToAllTCAtypes
If you use extensions like blog which use other page types, the seo tab is not displayed.
The reason for that is that in the pages TCA override the addToAllTCAtypes is limited to several types. I removed these types so it is added to all page types (I know for some of them it really does not make any sense, but I think there is no harm, to have the SEO tab e.g. on a page type folder.) and I can use it on the blog pages, too.
Another possibility would be to make the types configurable...
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