test getInput method
test login using getSession method.
test forceAuth. forces Authenticated ONLY IF the id is valid.
deleted obsolete old Auth classes.
add phpunit.xml.
rembmerMe saves cookies ONLY AFTER the remember token is saved successfully.
check the return of saveRememberToken.
run remember related method only when remember is set.
extract code to rememberMe.
use Auth class as a gateway/facade into Authenticate object.
easy to manipulate multiple users.