[PATCH] Assorted documentation patches

Hi,

while sifting through the documentation to find different namings for the 
same concepts, I saw a few things here and there, which I fixed. Since the 
sifting was quite numbing, there might be some wrong "fixes".

Sorry, patch is attached, because I still can't convince my pine (version 
4.63) to send single space lines :-(

Ciao,
Dscho