The first stable release of WebGUI 7.4.

 - fix: Syndicated Content doesn't display all items with multiple feeds in interleaved mode
 - fix: SQLForm file upload broken
 - fix: Newsletter can contain duplicate threads
 - fix: Captcha unreadable when using Image::Magick
 - fix: WebGUI::Group->new doesn't check group validity
 - add form element template variables for event user defined fields
 - fix: File Pile doesn't have save and commit button
 - fix: Anonymous user creation doesn't use default values for yes/no fields
 - changed hover help to use YUI tooltips, fixes positioning issues
 - remove duplicate header section in calendar event template
 - events now have a time zone.  fixes recurring events being generated on the wrong day.
 - recurring events are included in iCal feeds