This reverts commit 1ea46ea8.

Don't use squash because in this way we will lost the history.

mysql has limit to 16 characters.

Force usage of what I (Romain) consider as good logrotate configuration for
now.

It means that there are no grave buildout/python errors. Functionality status
is not met yet.

Turn on xtrabackup. Use maaakit.

Note: This is blind adaptation of current code, without any tests. This might
be incomplete code. Profiles *IS* incomplete, it will be fixed during runtime
checks.