<p>In population terms, Liverpool isn&rsquo;t a huge city (it is dwarfed by Birmingham), but it looms colossally in the history (recorded and mythical) of the British Isles, and indeed the world. <em>Real Liverpool</em> is Niall Griffiths&rsquo; antidote to some of mawkish twaddle that has marked Liverpool&rsquo;s...