[DocBook] Too much escaping in code

Quotes are too much escaped in code blocks. For instance, json.xml:

{{{

<db:para>A simple JSON document encoding a person, his/her age, address and phone numbers could look like:</db:para>
<db:programlisting language="cpp">{
"FirstName": "John",
"LastName": "Doe",
"Age": 43,
"Address":

{ "Street": "Downing Street 10", "City": "London", "Country": "Great Britain" }

,
"Phone numbers": [
"+44 1234567",
"+44 2345678"
]
}}}

 

Or in 04-qdoc-commands-textmarkup.xml:

 

{{{

<db:para>For example, we might want to render an inline image so that it floats to the right of the current block of text:</db:para> <db:programlisting language="cpp" role="bad">/*!     \div

{class="float-right"}

        \inlineimage qml-column.png
    \enddiv
*/
</db:programlisting>

}}}