initial version of element documentaton with words.
small changes to docs.
more changes to docs stuff.
Merge branch 'master' into richtext_ernsthaft
initial version of documentation language
document import, and better paragraph rendering.
added the notion of document export and renderers
initial HTML Export works.
HTML Export, bugs fixed.
first cut at image path
added images
image works for HTML
more work on the images stuff.
improved directory handling
added a stylesheet, to try things out
better stylesheet now
a few more fixes
latex export works
Merge branch 'master' into richtext_ernsthaft
intial C integration done