replace Config DPAE provider with database provider; had to adjust Data::Printer alias in Routes to avoid errors due to possible clash with another package
include password in call to DPAE authenticate_user() - something changed in DPAE so that password now required for authentication to get logged_in_user & logged_in_user_realm session entries
moved paginator code into own sub; separated model get_report_counts into own sub, using new count() method in Local::DB; new config item paginator.siblings; general code tidy
added authentication function using D2::Plugin::Auth::Extensible; new admin function to register new user; removed GET /login route - using auto_page()
fix for 'mysql gone away' problem in Routes::AJAX - app definition was incorrect, and gave it a 'before' hook to check_db_connection as precaution; removed debugging info in DB::check_db_connection
fix for 'mysql server has gone away' message - new DB check_db_connection() method clears dbix object if no ping received from db, forcing dbix object recreation; wrapped 'horrible' deferred keyword in flash() method; dev logger uses Console::Colored output
