Garbage collecting the LibreOffice development wiki entry pages

[Bjoern Michaelsen]

Hi all,

just cleaned and sorted the LibreOffice development pages:

- https://wiki.documentfoundation.org/Development
- https://wiki.documentfoundation.org/Development/Native_Build

which still contained lots of old, obsolete and even misleading content in a
huge unsorted page, which likely nobody bothered to clean up because it ... was
a huge unsorted page. I hope the new pages with lots of obsolete stuff killed
and lots of nonessential/reference stuff moved down to the end of the page,
leaving the top of the page for the essentials will make life quite a bit
easier for new contributors!

see also: http://sweetshark.livejournal.com/13736.html

Best,

Bjoern