DocView now supports OpenDocument & MS Office formats

[Tassilo Horn]

Hi all,

I've just pushed two changes to doc-view.el, which enable viewing all
formats supported by OpenOffice.org.  Basically, that's all OpenDocument
formats, but also (almost?) all Microsoft Office formats.

Till now, I didn't modify the auto-mode-alist entry of doc-view-mode.  I
think, adding all MS office extensions is ok, cause those are not really
editable (binary) stuff anyway.  Should I go ahead?

For the OpenDocument formats, I'm not sure.  Basically, those are zip
archives containing the document contents as XML + images and metadata,
and it's not totally unreasonable to edit the contents directly.  So I
guess, that's a corner case like postscript files...

Bye,
Tassilo