Missing &  and chars after " in tree of chm documentation

In the chm-doxygen manual we see that for:
- the command \& the & is missing
- commands containing a " all text is missing after this "
These are known limitations of the chm format (see e.g. http://www.helpware.net/htmlhelp/hhwreadme.htm)

The problem with the & is that we cannot do a global replace as in the string there might be constructs like &...; , so only a & at the end of the text is replaced. Other places can easily be solved by the user by placing a space after the & sign (Note: \&amp; in the original description is not, yet, possible as \&amp; is not translated by doxygen)
The problem of the " is solved by replacing all occurrences by \&quot;