Author: Stevani Andolo
MDL-70371 core: Defined password length
1. Modified the password related forms
2. Added a new constant in moodlelib.php called MAX_PASSWORD_CHARACTERS
3. Added a new method in moodlelib.php called exeeds_password_length
4. Updated the upgrade.text
http://git.moodle.org/gw?p=moodle.git;a=commit;h=dbf83c72c7a280fbe170f5fd5c2afc6989931b10
http://github.com/moodle/moodle/commit/dbf83c72c7a280fbe170f5fd5c2afc6989931b10
+ 4.3 en [passwordexceeded,core_error]