Yubico

* Added the ability to send yk=all to ykval-resync.php to queue sync
of all known active YubiKeys.

* Added ykval-synchronize to easily call ykval-resync.php on a remote
server.

* Added ykval-gen-clients to generate API clients.

* Log query for POST requests too.

* Fixed a problem that caused ykval-queue to terminate if the database
was not available initially.

* Add ChangeLog generation using git2cl.

* Changed location of files to /usr/share/yubikey-val, etc.

* Changed location of configuration files to /etc/yubico/val/.

* Made import/export scripts use comma separation, instead of tabs.

* Added a working ykval-config.php that looks for a ksm on localhost.

* Removed System_Daemon dependency and made ykval-queue a simple
backgroundable process that can be daemonized using for instance
and init.d script.

* Added man pages for executables.

* Refactor database code, allowing for other underlying implementations
than PDO. Add a PDO and an Oracle (through php_oci) implementation.
Based on patch from Remi Mollon <remi.molloncern.ch>

* Fix for ykval-export running on postgres.

* Add resync.php to request new sync of public id.

* Add munin plugin for statistics.

* Logging misstakes that broke 2.17 fixed.

* Logging improvements.
use ykval-verify/ykval-sync correctly for whole flow
clarify/degrade various logging messages

* Fix mysql error introduced in 2.14, also logs
database updated/not updated correctly.

* Accept sync for disabled keys, but still answer BAD_OTP.

* Remove from sync queue on BAD_OTP answer.

* Add munin plugin for response types.