Log Message:
Update www/davical to v1.1.9.2

From upstream's changelog:

1.1.9.2:

Bug Fixes

    Fix CSRF not being checked in collection-edit.php

Other Changes

    use foreach() instead of deprecated each()

1.1.9.1:

Bug Fixes

    Corrects reflected cross-site scripting (XSS) vulnerability
    Corrects persistent XSS vulnerability in user/group/resource details
    Corrects persistent XSS vulnerability in user/group/resource list
    Adds token to address cross-site request forgery (CSRF) vulnerability
    Corrects syntax error in name of collection_id
    Make calquery aware of default timezone
    Corrections to range-based calendar queries
    Add missing 'break' to rrule.php

Other Changes

    Updated PHP version requirement