* Use pkg-config to find curl, instead of libcurl.m4.
* ykclient: Added --cai parameter to specify GnuTLS-compatible CA Info.
* libykclient: Added ykclient_set_ca_info function.
Used when curl is linked with GnuTLS, used to set CA Info.
* libykclient: Added ykclient_set_url_bases function.
Uses a more reasonable/extensible URL string syntax. The old
ykclient_set_url_templates is hereby deprecated.
* Added shared library versioning script.
* Valgrind is used for selftests.
* Add ykclient_global_init and ykclient_global_done.
* Add ykclient_version.h header file with versioning information.
New symbols are YKCLIENT_VERSION_STRING, YKCLIENT_VERSION_NUMBER,
YKCLIENT_VERSION_MAJOR, YKCLIENT_VERSION_MINOR,
YKCLIENT_VERSION_PATCH. New function ykclient_check_version.
* Modified API to use 'ykclient_rc' enum as return type instead of 'int'.
* Enum also moved to separate new header file ykclient_errors.h.
This should be backwards compatible. It makes the return type
clearer.
* Improve curl multi usage.
* ykclient: Cleanup command line tool a bit to make it more useful.
Added --help, --version and --debug. Defaults to silent output. Exit
codes are documented and more useful. Added manpage.
(Moved HOMEPAGE and MASTER_SITES to the new GitHub project pages)
* ykclient: Add C++ namespace protection.
* Add multi-server support with curl_multi.
Enabled by default for YubiCloud servers.
Settable with the new library function set_template_urls() or
the urls parameter to ykclient_verify_otp_v2().
* Remove extra % in ykclient help.
* Add ca path option to ykclient, --ca.
Patch from Jay Kline <jay.kline.ctr@hpcmo.hpc.mil>.
* Make the nonce unique for consecutive calls to the same ykclient handle.
* Do url encoding of OTP before sending.
* Fix segfault on curl error.
Patch from Lee Hinman <lee.hinman.ctr@hpc.mil>
