Improve error handling for rexfile eval
Disable strict mode for rexfile
Save error message and add error_message accessor method
add Mojolicious::Plugin::Validator
hide 'Rex::Cli' from PAUSE indexer
handle rexfile errors, display error message to browser
added user authentication (optional, via config file)
added screens for basic user management
added Mojolicious::Plugin::Validator
added setup instructions to use MySQL backend