- fix problem with parsing the pam_pwquality options
patch by Vladimir Sorokin.
- updated translations from Transifex
- treat empty user or password as NULL
- move the library to /usr
- add maxsequence check for too long monotonic character sequence.
- clarified alternative licensing to GPLv2+.
- add local_users_only option to skip the pwquality checks for
non-locals. (thanks to Stef Walter)
- fix leak when throwing PWQError exception
- added pkgconfig file
- call the simplicity checks before the cracklib check
- add enforce_for_root option to the PAM module
- updated translations from Transifex
