Add UNL_Auth and SimpleCAS packages to lib

lib/.configsnapshots/configsnapshot-2011-04-27 13-54-20.xml

lib/.pear2registry

...gistry/channels/channel-simplecas.googlecode.com##svn.xml

lib/.xmlregistry/channels/channelalias-simplecas.txt

...y/packages/pear.php.net/HTTP_Request2/2.0.0beta3-info.xml

...xmlregistry/packages/pear.php.net/Net_URL2/0.3.1-info.xml

...xmlregistry/packages/pear.unl.edu/UNL_Auth/0.4.0-info.xml

...ges/simplecas.googlecode.com!svn/SimpleCAS/0.5.0-info.xml

lib/data/HTTP_Request2/HTTP/generate-list.php

lib/data/HTTP_Request2/HTTP/public-suffix-list.php

lib/docs/HTTP_Request2/HTTP/examples/upload-rapidshare.php

lib/docs/Net_URL2/Net/docs/6470.php

lib/docs/Net_URL2/Net/docs/example.php

...s/SimpleCAS/docs/examples/Zend_Auth_Adapter_SimpleCAS.php

lib/docs/SimpleCAS/docs/examples/simple.php

lib/docs/UNL_Auth/docs/examples/CASPEARAuth_example.php

lib/docs/UNL_Auth/docs/examples/CAS_example.php

lib/docs/UNL_Auth/docs/examples/SimpleCAS_example.php

lib/docs/UNL_Auth/docs/examples/Zend_SimpleCAS_example.php

lib/downloads/HTTP_Request2-2.0.0beta3.tgz