fixed some facts in drawing guide
cleaned up start page and other static pages

Removed about page, replaced it by a short description on the start
page. Linked Documentation and contribution pages from the header menu.
draft of license page/blog post
blog and doc about licensing
updated from master
updated from master
updated from master
fixed typo
automatic conversion of current spec to html
reorganized and added documentation
fixed missing image in spec

and add changes automatically to git when updating
added basefunction howto
post about writing documentation
working on documentation