increasing the default generated password length

to 15 (from 7)
Merge branch 'refs/heads/kohana_v3.3/feature/def_pwd_length' into kohana_v3.3/master
allowing for password up to 255 chars long

changing the max length on password fields
making the password confirm field a copy of the password field

since it all the same settings
Merge branch 'refs/heads/kohana_v3.3/feature/password_length' into kohana_v3.3/master