Update class.uFlex.php

If i request a password reset on your email address you can't login till you deal with the mechanism to reset your password.
If i flood the password reset routine with requests for your email address you're affectively locked out.

This mod allows an active user (with the correct password) to login even if a password reset has been requested.
Merge pull request #3 from m-hume/patch-1

Updated pass_reset method to not deactivate and activated account