Database for a newly created wiki does not support utf8

In XEM 1.7.1 with mysql, when one creates a new wiki, a new database is created, with "latin1_swedish_ci" collocation, while the current default encoding for databases and wikis is unicoe UTF8. As a result it is not possible to import UTF8 pages in the newly created wiki.

latin1_swedish_ci is the default collation for mysql. Apparently, the database creation code does not specify the collation/encoding to be used. This encoding is available in xwiki.cfg.