provide a more intuitive traceback for operating systems with a
        limited gmtime() implementations

merged toby-syslog-access-branch: Collector 271: use different environment variables for sending event log and access log to syslog

has been started without webdav server

Fix SF bug #516768 reported by Dave Wallace.

Replace use of PyMem_DEL() with PyObject_Del() on object dealloc
functions.  The use of PyMem_DEL() is incorrect for object
deallocation, because it only ever calls the low-level free().  If a
custom allocator like pymalloc is used, it needs to be called to free
the memory.

      - Collector #278: DocumentWithImages could not handle URLs with
        underscores

for dedicated webdav clients by setting the env. var
WEBDAV_SOURCE_PORT_CLIENTS

- unified output for inner links

- minor code cleanup (striping of unused spaces)

the Julian day and the week in the current year based on the Julian
calendar.

        files during installation. Fixed.

wrapped objects (caching wrapped objects being a bad thing)

        support for reading gzipped detailed logfiles