graphical installer

[bradharmon]

currently the setup.php doesn't have meaningful html output. Make a graphical installer that will take input for certain parameters and output successes and failures in a way that looks good.

[bradharmon]

paramaters needed:

• database name to use
• database username/password

database should be created before install process
the regions and users tables will be dropped before being created. All data will be DELETED

[bradharmon]

• create username/password for the admin account
  • disable registration except if logged in as admin user