Enabled editing of attributes for existing records

A.K.A. "Naked" editing, this allows for form-based edits to existing
records (no adding new), limited to editing just the attributes, but not
the geometry.

Also moves the Users/Roles/Membership tables into the SQL Server
database, no longer using the local .mdf in App_Data. Code in
Global.asax generates the default roles and users.

Removed the FDOT logo, just using the CFID logo now.