[TYPO3-doc] Small improvements to official documentation template

[François Suter]

Hi folks,

I've got to tell you that I'm really glad I started this thread, because 
we got into a very fruitful debate about the design of our manuals and I 
feel like this has lead to some very serious improvements.

Here's the next version:

http://drp.ly/1GQodq

This one contains major changes which address most of the recent remarks:

- colors are gone for headings. I stuck to black, plus 60% gray for 
heading 4 and 5
- the font for body text is replaced by a serif font. I went for the 
very classical Times. I don't consider this to be the most elegant serif 
font on the block. The choice is open for debate as far as I'm 
concerned, but we've got to make sure that it's readily available on all 
platforms and that it's a serious font (some fonts have limited support 
for characters beyond alphabetical, numbers and a few punctuation signs)
- added a bit more indent to code samples and bullet lists, so that they 
stand out a bit

As mentioned earlier I wanted to explore OpenOffice frames to check if 
that could help manage call-out boxes more safely. It doesn't. Frames 
are PITA so I decided to stick to the current paragraphs. Copying and 
pasting works just fine :-)

So let's hear your thoughts again, hopefully for the last round of 
comments (not that I'm complaining, this was extremely constructive).

Cheers

-- 
Francois Suter
Cobweb Development Sarl - http://www.cobweb.ch