Update MAM to use latest carbons.
ElementTree._escape_cdata isn't reliable across Python versions.

It also does not work as desired.

Revert "Merge pull request #254 from barreverte/develop"

This reverts commit 23750357e21ce1e22445b2e702bdd4efb77f2369, reversing
changes made to 07284f380fa0a893a5ef56774fcef71a47851668.
Add MAM archived tags