Bugfix: string value of numbers with e+ notation

When trying to get a string from a number 
with xpath we were getting a scientific notation
on laaarge numbers, such as

1.2345678901235e+18

from

1234567890123456789

we usually don't want this. Now we just return
the decimal part of that number (string.format %d)
Hyperlinks in <Paragraph>

With <A href="..."> you can now insert a hyperlink
into the document which, when you click on it,
brings you to the given webpage