PDF: <SPACE/> should become ~

[martin-henz]

In typesetting, it is considered bad style to have a newline between parts that are intimately related. For example, in the sentence "The distance was 11 km as the crow flies.", there should be no newline between "11" and "km". Here is an example of this in the PDF:

There should be no newline between "section" and "1.2.1". In the XML sources, we use the tag <SPACE/> to indicate a non-breaking space:
in section<SPACE/><REF NAME="sec:recursion-and-iteration"/> the number

In LaTeX, the symbol ~ allows to place a space between two parts of a sentence, while making sure that they are never separated by a newline. So instead of
described in section \ref{sec:recursion-and-iteration} the number
we should write:
described in section~\ref{sec:recursion-and-iteration} the number
To make the long story short: We should translate <SPACE/> to ~ in LaTeX.