Log Message:
Update to 1.4.11. From the changelog:

indexers:

* omindex:

  + outlookmsg2html: Handle Subject, Date, and From headers.

omega:

* In $div and $mod we were converting a non-zero denominator from string to int
  twice for no good reason.

testsuite:

* omegatest: Fix testcase which was failing if the local timezone was behind
  UTC.  This testcase was added in 1.4.10.

* omegatest: Tweak to not fail when $time not supported - it seems that the
  OS time functions we use report an error on GNU Hurd for unknown reasons.

build system:

* Sync up probes for OS time functions in omega's configure with those in
  xapian-core which may solve $time not being supported on GNU Hurd.

portability:

* Add missing includes of <cerrno>.  Fixes #776, reported by Matthieu Gautier.

* Stop using htonl()/ntohl() in a non-network context which should improve
  portability to platforms without a POSIX-like socket API.