Assorted Bug Fixes:

- Event Leads Title and Display are requireds
- Tweak City Regex
- Changed ValidateEventDate to support create vs just edit
- Allow user to reregister for events that they previously cancelled
- Fix issue on maintain event page where after clicking AddEventLead, and then hitting Save Caused a crash
- Standardize Address 2 field name
- Astrik required fields on Create Team
Merge branch 'master' of https://github.com/HansonDodge/DirtyGirl

Conflicts:
	src/DirtyGirl.Services/RegistrationService.cs