SabreDAV

This release fixes issue 50, issue 51 (adding Windows 7 lock files to TemporaryFileFilter), issue 38 (allowing custom filters to be added to TemporaryFileFilter), and issue 53 (ETags in the If: header were always failing). An Apache authentication backend has been added in case authentication through .htaccess is desired. Small improvements have been made to example files.

CalDAV (RFC4791) is supported. PDO backends were added for Locks, Authentication, and Calendars. 95% of the code is covered by unit tests. There's actually more unit testing code now than "normal" code. ACL (RFC3744) principals were implemented. Note that privileges are not yet implemented. Extended MKCOL (RFC5689) is supported. If-Range, If-Modified-Since, If-Unmodified-Since, If-Match, and If-None-Match are supported. There are now two distributions: the first is a unified zip file with all the features, and the second is four separate PEAR packages.

Exception information is now hidden by default. It can be turned on with the Sabre_DAV_Server::$debugExceptions property.
autoload was moved from lib/ to lib/Sabre/autoload.php. Backwards compatibility is provided, but using the new location is recommended.

A double xml-namespace declaration was corrected, fixing a Webdrive bug.

This release uses a new PEAR channel: pear.sabredav.org. The SabreDAV version has been added to all error responses for easier debugging. Issue 26 (better Gnome compatibility), issue 37 (TemporaryFileFilter regex too loose), and issues 33, 39, and 40 (better handling of international characters) have been fixed.