The pre-IA2 code is available in the repository and
the commented out code made the methods less readable.

removed pCaptionObj from accessibility; it was not initialized but accessed in one place. Checked with symphony code, there was a set method which is not in AOO trunk, thus solved accesses to zero pointer usage

by fixing the non-canonical copy constructor of gr::Segment()

and call the rehash() methods of their TR1 counterparts directly

Happy new times: Now even simple compiler warning fixes need their own issue.

The crash reporter facility can provide much better details about crashes.
But if that facility is disabled then handling SEH events such as div-by-zero
as C++ exceptions is a worthwhile alternative. It can provide a few interesting
details and it allows a graceful shutdown of the application.

121870: adjust threshold for <Color::IsDark()> to improve interoperability with Microsoft Office documents

Patch by: Pedro <pfg@apache.org>
Review by: Oliver <orw @apache.org>

patch by: Ariel <arielch@apache.org>
review by: Oliver <orw@apache.org>