SpecializeMii changelog

This fixes issues #2 and #3, thanks to @XT-8147 for reporting.

Databases containing only one Mii would be ignored; this should be fixed now.

If some of your Mii weren't showing in SpecializeMii, this release hopefully fixes that.

In case you are interested in why this was this happened and how it was fixed, refer to commit 88d5c3d.

Require confirmation to change personal Mii.