Log Message:
Updating davical to 1.1.3.1
Updating MASTER_SITES

From the ChangeLog:

2013-03-25  Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
        * In places where the CGI variable REMOTE_USER is read, support
          alternatively REDIRECT_REMOTE_USER, which is used by the Apache
          HTTPD Server instead, when a redirect was used.
        * Removed debian/README.Debian which did not contain any useful
          information.

2013-03-23  Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
        * Handle the content of the CGI AUTH_TYPE variable case-insensitively as
          defined by RFC 3875 Section 4.1.1.

2013-03-21  Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
        * Changed the pathnames of the debug files to be a bit more FHS
          compliant.

2013-03-20  Christoph Anton Mitterer <mail@christoph.anton.mitterer.name>
        * Changed the end-of-line encodings of all non-Windows-related and
          non-autogenerated text files to use UNIX LF (lots of them had mixed
          LF/CRLF).
        * HTML escape the remotely retrieved version string printed to the HTML
          in order to prevent and attacks (if this would have been possible at
          all in 12 characters).
        * Updated all addresses of the canonical git upstream repository and the
          issue tracker to the new ones.

2013-03-06  Andrew McMillan  <andrew@morphoss.com>
        * Fix capitalisation of 'plpgsql' & 'sql' for Postgres 9.2. (debbug \ 
#702403)

2013-02-16  Andrew McMillan  <andrew@morphoss.com>
        * Content-Type header should be 'charset' not 'encoding'.

2012-09-20  Andrew McMillan  <andrew@morphoss.com>
        * When we get here it is a Bad Request, not a Server Error.
        * Quick workaround for iOS6 supported-calendar-component-set issue.
          Adds a $c->default_calendar_components array of (VEVENT,VTODO,...)
        * Workaround client software with imperfect add-member implementations.

2012-09-10  Andrew McMillan  <andrew@morphoss.com>
        * Fix unassigned variable.
        * Avoid unassigned variable warning.
        * Fix UID handling.
        * Fix debugging to error log.

2012-08-09  Andrew McMillan  <andrew@morphoss.com>
        * Ensure test responses are displayed in their unprocessed form.
        * Some debugging messages.

2012-07-31  Andrew McMillan  <andrew@morphoss.com>
        * Replace deprecated split() with explode()

2012-05-28  Andrew McMillan  <andrew@morphoss.com>
        * First cut at iMIP implementation.  Still working on this.

2012-07-30  Andrew McMillan  <andrew@morphoss.com>
        * Fix SQL fieldname.

2012-07-29  Andrew McMillan  <andrew@morphoss.com>
        * Sometimes we want to retrieve the sync-token as a result of a change \ 
we just made.
          This allows a (default true) flag to indicate whether it's OK to use
          a previously cached value.
        * On Apple devices these can sometimes appear in the Apple namespace. Odd.
        * Let the VCalendar class handle how to get the UID from the calendar.

2012-07-25  Andrew McMillan  <andrew@morphoss.com>
        * Remove old redundant constructor.

2012-07-13  Andrew McMillan  <andrew@morphoss.com>
        * Add workaround for Apple's POST add-member trainwreck.
        * We might not have a $request calling this so use the object's path instead.
        * Testing for dead property XML which is a set of prop.
        * supported-calendar-component-set uses dead properties too...
        * Don't just return the first element in a dead property - there might \ 
be multiple!