Added explanation about default timezone for newsletters
Updated this ancient welcome message that referred to myRobogals as being "new" (it is now 3 years old)
Conference registration features added:
- Can open or close conference registration, with custom message if closed
- Easier button to "RSVP for myself"
- Explicitly says that only their own chapter is shown
- Ability to label custom checkboxes
- Clean behaviour for conferences with no custom options
- Updated PayPal address
- Don't show invoice column if invoicing features not used
- Generate CSV file for name tags
- Make it compulsory for attendees to enter their position in Robogals