Generated feeds don't escape ampersands

Generated feeds don't escape ampersands (the & symbol) and I can only assume the same problem exists for other characters significant to XML syntax like less/greater-than symbols.

Because XML is a "be strict about what you accept" format, this renders the feeds completely useless to most feed aggregators. I know KDE's aKregator fails to parse the feed in it's current state.

The simplest way to solve the problem would probably be to replace & with & and then < and > with < and > throughout the input data. I forget how to do so in PHP and Perl, but for Python, it's as simple as:

inputstring = inputString.replace('&','&').replace('<','<').replace('>','>')