GSoC Refactor god objects weekly report

This week I refactored IDocumentFieldsAccess and 
IDocumentLineNumberAccess. To have something more in here for a change, 
a few weeks ago I started using Clang instead of gcc and I like it much 
better. I remember the time where I got an error message longer than my 
terminal's scroll buffer because I forgot a closing "}" with gcc ;) .
The only thing bugging me is that the extern-and-not-defined plugin is 
not really werror compatible because it seems to warn in a lot of 
places. To disable it I moved into a "disabled" folder and told git to 
ignore it so I dont commit that changed, but it seems to reappear 
everytime I pull.

Also when I started refactoring it was very tedious to move all the 
methods call of from SwDoc::method to SwDoc::getInterface::method . I 
removed them from doc.hxx and fixed all wrong calls as they popped up as 
errors while compiling which is very slow. After some googling I found a 
good way to do this faster while still looking at every line I change: 
grep "FROM" -rl --include="*.cxx" sw/ | parallel -j1 --tty vim -c 
'"%s/FROM/TO/gc"' -c '"wq"' {}
This uses gnu parallel and  launches vim for every occurences which 
shows me the surrounding code and asks for confirmation for every replace.

Valentin