new gdb pretty printers in master

Hi all,

over the past few days I knocked together pretty printers for some boost
stuff. I have created a project for it at
http://code.google.com/p/boost-gdb-printers/ (in (probably vain) hope it
will be used (and useful) outside libreoffice...), but, for convenience,
I have added it into libreoffice tree too. There are printers for:

* Optional:
 - optional

* Pointer Container
 - ptr_deque
 - ptr_list
 - ptr_map
 - ptr_multimap
 - ptr_multiset
 - ptr_set
 - ptr_unordered_map
 - ptr_unordered_multimap
 - ptr_unordered_multiset
 - ptr_unordered_set
 - ptr_vector

* Smart Ptr
 - scoped_ptr
 - shared_ptr
 - weak_ptr

* Unordered
 - unordered_map
 - unordered_multimap
 - unordered_multiset
 - unordered_set

It works automagically--all you need to do get it is

    make -sr solenv && make -sr solenv.deliver

to update the autoloaders.

If you want to contribute, please do not commit directly into
libreoffice (because your change would be overwritten the next time I
update the stuff), but send me a patch.

D.