Log Message:
Update www/davical to v1.1.7.

From the changelog:

This release implements management of calendar delegations via CalDAV
(for example with iCal). It also makes some necessary changes to keep the
Debian packages buildable.

Bug Fixes
=========
* Apache config: add PT to follow alias
* UI: create external bindings with type set (fix: #132)
* Fix group-member-set and group-membership queries on proxy resources
* Correctly handle durations without units like "PT"
* Fix common etag match code, use it everywhere

Other Changes
=============
* Document $c->hide_bound and $c->disable_caldav_proxy_propfind_collections
  config options, as well as the most important debug options
* Advertise support for CalDAV principal-match REPORT
* Implement managing calendar delegations from iCal (caldav-proxy)
* LDAP sync: reactivate users present in LDAP, use php ldap explode in
  order to be compatible with any DN (!42, !43)
* Improved handling of modifications to attendees' instances of events
* Various updates to API documentation and code cleanup
* Switch to doxygen for api docs