1) Controller::$input is gone -- use Input::instance() now
2) Handle new 'database.<default>.connection.params' parameter
3) Handle new 'cache.<default>.prefix' parameter
- Flattened the directory structure
- Greatly simplified structure in installer; it now only reports environmental
checks that fail. Simplified code that prints exceptions. Use only mysql
calls for the installer, but select mysqli automatically if it's available.
Drop the response file; that's easily replicated with flag support
- Create a random password for the admin user
- Delete unused controllers
- Invert the form of the database config template to be mostly non-PHP
with just a few PHP calls
