Don't call lambdas for inverted sections - matches mustache.js behaviour
Don't call lambdas for inverted sections - matches mustache.js behaviour

xxgreg/mustache,johnpryan/mustache,MikeMitterer/dart-mdl-mustache,MikeMitterer/dart-mdl-mustache,johnpryan/mustache,xxgreg/mustache,xxgreg/mustache,MikeMitterer/mustache,MikeMitterer/dart-mdl-mustache,johnpryan/mustache,MikeMitterer/dart-mdl-mustache,xxgreg/mustache,MikeMitterer/mustache,MikeMitterer/mustache,MikeMitterer/mustache,MikeMitterer/dart-mdl-mustache,MikeMitterer/mustache,johnpryan/mustache