keyword index doesn't work with unicode (2byte) letters
|Priority:||Must have||Due date:|
|Category:||Wiki Rendering||Spent time:||-|
|Target version:||dr_wiki 1.x||Estimated time:||1.00 hour|
Keyword index generation doesn't work because we need to use mb_substr instead substr.
I have created patch but my PHP even worse than English, so better to use not check if (mb_check_encoding($str,'UTF-8')) but set here site encoding mb_substr(mb_strtoupper($str, "utf-8"),0,1,'utf-8');
Please fix ASAP also category index and other places where used such a substring.
[Bug 3222] Model the "additional attendees" as a 1:n relation from registrations to FE users, r=niels