- tags improvements
* pass to templates all fields in table #tags (handy for plugins such as type tags)
* fix issue with tag letter when first letter is accentuated (utf-8)
* tags are sorted on url_name instead of name (accentuated first letter chars are the same as without accent)
* better use of columns in by letter display mode
git-svn-id: http://piwigo.org/svn/trunk@2409 68402e56-0260-453c-a942-63ccdbb3a9ee