Patch is mostly created by script in egroupware/doc/fix_depricated.php in separate commit.
I do NOT advice to apply this patch to a production system (it's commited to trunk!), as the automatic modified regular expressions have a good change to break something ...
2) additionaly added new year of the next year and new year's eve of the last year to this years holidays, as they are often displayed (or missing) in a week- or day-view
3) fixed the not working saving of a changed observance rule in the holiday manager
4) added the observance rule to new year in the US
- holidays not complying to a (simple) rule like Eastern can now be entered as a one-time holiday for a fixed year
- fixed some wrong links and other stuff in the UI
- added a error-msg to accept_holiday on phpgroupware.org if there is already a file for the locale
- added download for holiday-files