Attribute "Currency" for hourly rates is currently being reviewed and might be removed in a later version

- replaces ad_export_vars with export_vars

- Added workflow updates in order to eliminate
  "modify" as the first transition in a WF

  OpenACS 5.9 does not allow anymore single percentages
  without enclosing double quotes such as: width=100%
  Instead, we have to write now: width="100%".

   removed default fixed setting of end date (end of century)
   removed setting birthday = today when birthday empty

  Now setting default for birthdate