Exclude page / title extensions from admin index. Thanks @n-zav!
Add test for page / title extensions removal from admin index
Change mptt version dependency to be PEP440 compatible
Merge pull request #3648 from yakky/feature/admin_removal

Remove title/page extensions from the admin index
Merge pull request #3703 from yakky/mpttvers

Change mptt version dependency to be PEP440 compatible