Prevent UIWebView callouts when users long tap on links

gistfile1.m

    [[self webView] stringByEvaluatingJavaScriptFromString:@"\
     var css = document.createElement(\"style\");\
     css.type = \"text/css\";\
     css.innerHTML = \"body { -webkit-touch-callout: none; }\";\
     document.body.appendChild(css);"];